Umm...

[Fireball15]

Almost every time I see a guy that I think is attractive now, I think to myself... "Hmm... I wonder how big his dick is" And I don't think I'm gay, but is that a gay thing, or like, is it just a puberty thing?

[Patchy]

Puberty for boys --> Teen Sexuality

[theOperaGhost]

It's a curiosity thing. Also a competitive type thing. Males, by nature, are very competitive, and penis size is one thing men are competitive about. People like to compare themselves to others as well, to know if they are "normal." It is not gay to think that at all.

[Trickster]

Every hear "I dont look" ? in the showers people compare. Males have a nature of being better then the next male. So what ur experiencing is just male hormones. It doesnt mean ur gay just curious/ competitive.

[JoshDude]

It's a curiosity thing. Also a competitive type thing. Males, by nature, are very competitive, and penis size is one thing men are competitive about. People like to compare themselves to others as well, to know if they are "normal." It is not gay to think that at all.

This.
Mainly curiosity.

[mr.sexy_bomb]

just hormones

[MisterAndrews]

i get like that lol i think its just alphamale instinct