I was about 15 when my penis got to adult size and was fully thatched with pubic hair. When it happened, it happened very quickly, coupled with a spurt in body height from 5 feet 2 inches (1.6 m) to 5 feet 11 (1.8 m) in less than a year. I couldn't have been happier! I had taken nearly two years of ragging in my high school locker room for my little-boy equipment, and I was even avoiding letting my own father see me naked – not easy, since we shared a bathroom. I'll never forget the day I felt, literally, man enough to climb into the shower in full view of my dad, who was shaving. I pulled the shower curtain, got erect at a touch, and masturbated to climax in 5 or 6 strokes – too fast, but so intense I can still feel it as I write about it.
- age 61, Missouri
This Week's Wackiest Response:
It happened overnight. I woke up and felt this bulge between my legs. My penis had grown 4 times its size in 8 hours. Sheeesh!
- age 16, Oklahoma
When I was going through puberty, I didn't know that significant penis growth was a part of it. I was mostly obsessed with facial and body hair (which I never got much of) and muscular development (which came much later for me). My penis growth must have been gradual, because I never noticed it and I never felt that my penis was unusually small or large. The first time I can remember measuring an erection was in my early 30s. It was slightly above average size then. I guess that I tended to focus more on things that were lacking.
- age 49, New Jersey
When I was about 12, my penis started to grow very suddenly. It was about this time when I first ejaculated. I only noticed my penis growing in length when I masturbated. There was a big difference in pleasure after I grew larger.
- age 16, Massachusetts
I was 20 years old before my penis reached its current size. Until then, I was very overweight. I was drafted into the Army and whipped into physical shape. I lost 50 pounds in two months, grew 4 inches (10.2 cm) taller, and my penis developed from a small 4 inches (10.2 cm) to my current 6.5 inches (16.5 cm) – average in length and size. This was a dramatic change for me, and it all happened in two months.
- age 51, California
A friend and I measured our sizes when I was 12, and at that stage I was 4.5 inches (11.4 cm). That's the length I always remembered it. Then, when I was 13 or14, it grew quite suddenly over a couple of months to 6.5 inches (16.5 cm).
- age 15, Australia
It seems that once I reached puberty around age 12, my penis was its maximum size when erect. I don't recall maturity being a long process once it began – perhaps just a few months from the first few pubic hairs until I had the normal hair distribution down there. When flaccid, my penis isn't much bigger than it was before puberty, but fortunately it quadruples in size when I'm aroused. I'm definitely a "grower," not a "shower"!
- age 40, Oregon
I didn't notice a quick change. In 7th grade, when I started to masturbate, I was a measly 4 inches (10.2 cm). By the time I reached 9th grade, I was 6.5 inches (16.5 cm). I measured it a lot, but it wasn't like, "Oh, wow – it got huge!" It was just slowly getting there.
- age 15, North Carolina
It was so gradual that I never even really noticed an increase in length or width. In fact, I'm not even sure whether it's stopped growing.
- age 18, New Jersey
I'm not sure; I suspect it was a slow process, though – if there had been a sudden growth spurt, I'd probably remember it. Indeed, I can remember when I was young wondering when I'd have a penis like a fully-grown man. It never really seemed to grow as much as I thought it should, and I felt like I was subnormal all through high school and into adulthood. When I was in my 20s, I saw adult men naked in locker rooms for the first time since I was a small boy. I was surprised to find that my penis actually had grown quite normally.
- age 31, Washington
I was 11 when my penis reached 5.7 inches. When I was 12 3/4, it reached 6 inches (15.25 cm). Now, my penis is 6.4 inches (16.25 cm).
- age 13, Arizona
I started a 3-finger masturbation technique at about age 12, outgrew it, and switched to a 4-finger technique when I was 14. Then I moved up to a full fist at age 15. I guess that's how I measure it!
- age 18, Canada
I had just turned 15. I'd had pubic hair for 3 years, but I was rather frustrated that my penis was smaller than those of most of my friends'. Showering one day in the locker room after gym, I noticed that it suddenly seemed thicker and longer. When I got home, I masturbated and stared at my erection. Finally, I had a man's penis! The growth seemed to happen overnight.
- age 35, Ohio
My penis seems to have been growing slowly but steadily since I was about 12. It is currently 5.75 inches (14.6 cm), but it seems so grow a little every few months. I'm positive that I'll eventually be over 6 inches (15.25 cm) – maybe even more!
- age 15, Illinois
Although I didn't start measuring my penis until I was an adult, some memories help to benchmark its growth. Just before we moved when I was 10, I remember being able to use two fingers and a thumb for the first time to masturbate as I listened to radio programs one Saturday morning, covered by a quilt in our den. Before that, since discovering masturbation at age 8, I had always rubbed the loose skin below my glans between my thumb and forefinger. About 6 months after our move, I remember looking down one day as I urinated and noticing that my penis seemed fatter, with a few hairs peeking out of my fly. By the time I was 11 and in 6th grade, I had a full growth of pubic hair at the base of my penis, which by then completely filled my fist when I masturbated. And I was ejaculating. It seems that most of the growth happened in the 12 months between ages 10 and 11.
- age 61, New Jersey When I was 10, I first discovered that I was a bit bigger than usual because some friends and I were comparing penises. I guess that is when the growth started, as I am currently 7 inches (17.8 cm) in length and 5 inches (12.7 cm) in circumference when erect. But I am average size when soft.
- age 15, Florida
I am a bit vague on this. I had my first "wet dream" a few days after my 14th birthday, and very soon after that, fell madly in love with my right hand. I simply cannot remember the exact progress of my "very best friend," but it seemed to me to be full-size from day one, which of course it probably was not. That was 50 years ago next February.
- age 63, Australia
My penis when fully erect is 5 inches (12.7 cm). It has been that way since I was 13 or 14. I was 12 when I first hit puberty and began to notice growth changes in my penis. Even though it started growing when I was 12, it made a sudden growth in a short time to my current length, and it has been that way for the past 2 or 3 years. But I sure hope I have another few growth spurts over the next few months!
- age 16, Ireland
I don't clearly remember my penis getting bigger. I do remember worrying that it might be too small. But as a circumcised boy in a world of uncircumcised boys, I was a bit more concerned about how it looked different. I think that until I was in my early 20s, my penis grew with me. It was never disproportionate to my body size. Besides, I am a grower, not a shower.
- age 34, Massachusetts
When I was 13, I masturbated for the first time. After about a year of rapid growth, my penis went through a period of not growing, although recently, it's picked up and grown another inch in the last 6 months!
- age 15, Ireland
I was about 16 when my penis reached its adult size. It grew pretty quickly after I started puberty at age 11 and was mostly full grown by the time I hit 16. Since then, it has been 6.5 inches (16.5 cm) when erect. I've never really measured its girth, but that seems to have been much the same as well. Nor have my testicles changed all that much in size.
- age 25, Canada
I never measured my penis until I began to have nocturnal emissions and finally figured out how to masturbate at age 15. It was the same length (4.5 inches; 11.4 cm) and circumference (5.5 inches; 14 cm) that it is now. I have no recollection of any sudden growth spurts, so it must have reached its current size gradually, when I wasn't looking.
- age 61, Michigan
From age 13 to around 16, my penis slowly began to grow. Then it had a sudden growth spurt around age 18. During the growth spurt, it began to curve. It's still just the average willy.
- age 25, West Virginia
I was about 16 when my penis reached its current size – just over 7 inches (17.8 cm). It happened slowly for me, between ages 13 and 16. It happened much faster for my friend; I guess everyone is different.
- age 18, Georgia
I became very interested in penis size around age 13, when I noticed my penis becoming much longer. This was about a year after I started masturbating and grew pubic hair. I looked at Web sites that said the average penis is around 6 inches (15.25 cm), and at that time my penis was already 5.5 inches (14 cm). Between ages 13 and 14, I had the most rapid growth in length, which I know because I kept a ruler and string next to my bed so I could measure my length and girth about once a month. It grew from 5.5 inches (14 cm) to around 8 inches (20.3 cm). In the past year, it has grown only about 1/4 to 1/2 inch (.65 to 1.25 cm) in length, but about 2 inches (5.1 cm) in girth. At age 15 I had a long, skinny penis that looked weird. Now it seems perfectly proportioned since it thickened. I think I'm just about done growing, too, which is good.
- age 16, New York
I was probably 17 or 18 when I reached my full size. My penis started growing when I was 11 or 12. But the process was so slow (and most of my friends had outgrown me – at least, early on) that I didn't realize I had ended up with a fairly large penis until I was out of college!
- age 31, Virginia
I didn't notice my penis growing. It's like when a friend, whom you see every day, grows – you just don't notice it!
- age 16, United Kingdom
I was a tiny, hairless, 12-year-old 7th grader – the first time we had showers in physical education. I noticed then that all my friends with man-size penises were very hairy. All the way through 10th grade (15 years old), my voice still had not changed, though I had finally grown pubic hair around my still-small penis. I guess it happened in the summer between my 10th- and 11th-grade years that my penis finally grew to be almost "man size." Even then, I wondered when it was going to get "full size." I guess I have never gotten "full size" in my flaccid state, like my friends – and probably never will. Comparing my erect penis with other guys now, I notice that the head is large and the shaft fairly thick. I think that makes up for lack of length just fine.
- age 42, California
My penis grew to its current size pretty quickly. I started to grow pubic hair when I was 13, and after that, it grew 2 or 3 inches (5.1 to 7.6 cm). I haven't gotten any bigger since then, and I'm pretty sure I'm at my permanent size. Every now and then, I hope I'll grow another half-inch in length or girth, but I don't think it's going to happen. Oh well.
- age 16, Pennsylvania
I guess it happened slowly, because I didn't really notice it. I think my penis grew along with my body and that's why I didn't notice it.
- age 21, Belgium
I was about 12 years old when my body started to grow. My penis started growing around then, too. It took only about a year to grow to its current size, about 6.5 inches (16.5 cm). Needless to say, a 12-year-old with a penis that size was considered a god, so I had my superiority for a few years!
- age 17, California
I got pubic hair when I was 11, and my penis grew slowly to its current size until I was 15 or 16. Interestingly, my testicles grew faster than my penis did.
- age 21, Illinois
I started to measure my penis regularly at about age 14. By then, it was almost the size it is now. I remember trying to come up with some mathematical method of figuring out how long it was when I first masturbated (age 12), and calculating it from there with an average per year growth to that time (age 14). It may have worked, but I'm not mathematically inclined, so I'm not sure if I did anything valid or correct in my calculations. I wish now that I had a Polaroid and had taken pictures of my erection every few months and noted the growth – an idea for younger dudes if you're into knowing later on.
- age 35, Arizona
My penis grew gradually over time. I just measured it recently at 5 inches (12.7 cm), which I think is pretty good for my age. I have a fear of having a small penis, but when I had to shower in freshman gym class for the first time a couple weeks ago, I was bigger than most, though not all. It seemed to start growing around age 12. My girlfriend commented that in the past year, it looks a lot bigger and will probably keep getting bigger. It still isn't very thick, and I don't have a lot of pubic hair, but I'm sure all of that will come eventually.
- age 14, Illinois
I remember only that I got hair there and I told my family about it when we were at dinner. They all blushed and kept silent. My mother suddenly spoke about different matters. I had not paid much attention to my penis and was never taught to clean it by retracting the foreskin. That was not possible until I was 21 and learned it from my mates at my sport club when we showered.
- age 33, Holland
I was 12 when I started puberty. First, I noticed that my balls were moving around more than usual – and, they were getting bigger and hanging lower. A few months later, I started getting hair around just the base of my penis, which felt stubbly at first. Then shortly after, my penis started growing, and my erections became non-stop. I measured my first erection when I was 12 – it was 3.5 inches (8.9 cm). When I turned 13, I was up to 6 inches (15.25 cm), and masturbating so much I thought I was a freak. No one I know admits to doing it in a serious conversation, so I am glad I found JackinWorld!
- age 18, Connecticut
I grew over a period of years between 13 and 15 years of age. I stayed about the same 5.5 to 6 inches (14 to 15.25 cm) through high school and into college. However, I had another growth spurt during college when I finally hit the 7-inch (17.8 cm) mark that some of my friends had achieved by age 14 or 15. I was under the impression for many years that I was smaller than average until I read statistics that helped me understand and appreciate where I fell in the distribution of penis size.
- age 66, Massachusetts
I was about 12 when changes first began to occur down there. First, my testicles began growing, and the skin of my scrotum got larger. Within a few months, my penis was growing, and short hair was growing right around the base. This is when I began masturbating and producing semen when I had my orgasms. Over the next year or so, my penis grew to its adult length and girth. Pubic hair continued growing thicker, longer, and curlier for several years. In fact, it still seems to be growing now! But my penis reached its current size before I was 15 or so.
- age 20, New York
When I was about 14 and with the discovery of the Internet, on my curious searches I learned about average penis sizes, etc., and started following its growth. I measured and recorded the size once a week, and at the time it was 14 cm (5.5 inches). It stopped growing when I was about 17. Currently it is at 18 cm (7.1 inches) and I still occasionally measure it when I'm extremely aroused in the hope that it's grown – but I'm still waiting.
- age 18, Australia
I don't remember it now. I think it's the same since I was 19. I remember that I was angry when I was 15 that my schoolmates had bigger penises than I did, and with more hair. Then I grew up and now I really like what I have.
- age 25, Poland
From age 11, I measured my penis almost weekly for signs of growth. Nothing happened and I finally lost interest in taking measurements. It was still 2.5 inches (6.35 cm) when I reached 13. Hardly noticing it, I experienced rapid growth between 13.5 and my 14th birthday. My first measurement after I was 14 gave a figure of 5.75 inches (14.6 cm), whereas now it has stabilized at 6.25 inches flaccid (15 cm) and 7.5 inches (19 cm) fully erect. From being very small, I now feel very confident to stand in the school showers without having to cover my genitals with my hands.
- age 16, Austria
My penis has been just under 6 inches (15.25 cm) long for most of my masturbating life. There has been no significant increase since I was 16 or 17. (My first orgasm was at 14.) It was no longer than 3 inches (7.6 cm) when I was 13, and would have been at least 5 inches (12.7 cm) by the time I was 15, when on average I masturbated two or three times a day. It has certainly gotten thicker since my late teens, and probably continued to thicken until I was 35 or 40. The circumference is also just under 6 inches (15.25 cm).
- age 64, United Kingdom
I was about 14 when my penis started to grow. Before that, I had one of the smallest penises in class, which embarrassed me a lot after sports, when we showered and would compare each other's bodies. But at 15, I was in the middle of puberty and my penis grew quickly to its current size, about 16 cm (6.3 inches). That's okay with me, and I don't feel embarrassed anymore. Many guys I compared myself with when I was younger look at me with admiration today, which makes me proud of what I have.
- age 19, Sweden
My penis has been the same length now for 3 years. It is 6 inches (15.4 cm) long, but it has gotten bigger around in the last year. At age 11 I was 5 inches (12.7 cm) and my best friend was 3 inches (7.6 cm). He is now almost 6 inches (15.4 cm). Mine has always been longer, and we thought I would get really long, but it didn't grow that much. His penis grew a lot from what it was and the growth was quite gradual.
- age 16, California
I was 17 when my penis reached full size at 6.5 inches (16.5 cm). It started growing to adult size when I was 11 or 12, grew rapidly for a couple years time, and then more slowly continued to grow until it stopped when I was 17. I was so proud of physically becoming a man that I kept a journal of my penis growth for several years!
- age 31, South Carolina
When I was about 14 I was jealous that my penis wasn't as big as many of the other guys that I had seen. I remember using the urinals and looking over and seeing huge penises, wondering whether mine would ever get that big. At 15, it had gotten a little bit bigger, but still very small. When I turned 16, my penis was about 5 inches (12.7 cm) long, but I still wasn't satisfied. Over the course of that year, though, it grew to about 6 inches (15.25 cm). When I finally turned 17 in February, it grew a bit more to what it is now, a little over 6.5 inches (16.5 cm). I'm very happy about my size now, although I wish that it could be a little bit bigger, maybe 7 inches (17.8 cm) – but I still have another year to go according to the books.
- age 17, Illinois
I was 12. My erection grew from 4 inches (10.2 cm) to 7.5 inches in about 3 months. Rather than being a process, puberty was more of an "explosion" for me. It happened almost completely over the summer before I started 7th grade.
- age 53, Arizona
My brother's penis (he is 13 months older than me) seemed to grow almost overnight to its current size when he was about 13. However, mine has been getting larger very steadily over the last 3 years and is now almost two inches (5.1 cm) longer than his. We find it interesting, also, that he still has absolutely no scrotal hair, whereas even when I was 12 years old I had long and fine red hairs on my scrotum.
- age 15, Florida
I started puberty around age 13 – later than most of my friends. I think my penis grew pretty gradually starting at 13, with a small amount of hair and my first orgasm. I started to notice it getting longer while masturbating every day. It didn't get to its full length (6 inches; 15.25 cm) until I was about 15. I honestly don't remember how big it was before 13. I didn't pay much attention to the size – I just wanted some pubic-hair growth, because all my friends already had it. I guess that it grew about 3 inches (7.6 cm) over two years.
- age 30, Ohio
Who can remember that? When I was about 14, I remember masturbating at least once a day, which I discovered quite by accident. Thinking back, it seems that my penis was close to the same size it is now – just under 6 inches (15.25 cm). It seemed bigger then because it was connected to a smaller body. Oh, well – being average works fine for me!
- age 34, Belgium
My penis at present is about 5.25 inches (13.3 cm). It had a growth spurt at first to about 3.5 inches (8.9 cm), but then it slowed down and my penis has now grown slowly over the last couple of years. I didn't realize it had started to grow until I had my first ejaculation at age 11. I hope it will grow a little more so I am not less than average.
- age 15, United Kingdom
It's funny, but I have very little recollection of my penis growing or the development of pubic hair. I don't know if it's just the conservative household I grew up in, or that I'm trying to block all the memories of a traumatic puberty. I do know that at 13, my penis measured about 6 inches (15.25 cm) – I measured it with a friend. Now, it's around 7 inches (17.8 cm), so I guess a lot of my development happened before I was 13.
- age 33, California
My penis has been 5.5 inches (14 cm) long for as far back as I can remember. I remember measuring it in the dark while a friend was sleeping over, and both of us saying ours were 6.5 inches (16.5 cm). We measured again later and found that we were using the wrong method. I really don't like my penis much at all. I wish it were an inch longer. But I'm stuck with it – I'm a short guy in more ways than one. That's my lot in life, and I might as well get used to it.
- age 16, Tennessee
I guess I was around 11 or 12 years old. I recall going to the swimming pool during school sports trials and noting that I was much more developed than the other guys my age. I was a little self-conscious about this as well as embarrassed, because I would get and retain an erection from the time I entered the changing rooms to the time I got into the pool, and then again at the end of the swimming session. The other guys would want to see my penis and compare theirs to mine. Once during one of the comparison sessions I was so turned on by it I actually ejaculated without even masturbating. This caused much envy and laughter (and embarrassment on my part) – especially because the laughter caused the house master to walk in shortly afterward. Fortunately, the other guys covered for me. Ahh, memories!
- age 28, Queensland, Australia