Not necessarily. Masturbation is a very penis-oriented activity: you have your penis in your hand, you're getting intense pleasure from it, you're touching yourself in other places, and you're getting ready to ejaculate. For some, the concept of girls just doesn't fit into the picture at this moment. Even if you do have a bisexual streak, this too is very common. Rather than getting freaked about it, just consider yourself normal. There's no reason to get upset over something that's shared by most guys – including, probably, most of your friends and family.
For more, read the article WHAT IS HOMOSEXUALITY? as well as Questions About Fantasies.
Do you find yourself masturbating more often during some seasons than others? Why?
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Answer this question | Suggest a question
I fantasize about other guys and penises when I masturbate. Does that mean I'm gay or bi?
