I love how everyone has a "friend"...
Are there things, suckmymuscle?
SuckMuscle, on a serious note, your friend is probably inherently bisexual or in the early stages of becoming a gay man. Contrary to all popular belief, not all GAY men are born gay. Some of us actually start off as straight men with a curious nature. We then gradually begin to identify with the, universally-friendly, bisexual designation. Consequently, it's not until you have a true taste of what a cock can do that you finally take the plunge and proudly say that you're gay.
Baby Steps..
"1"
P.S. Remember folks, before 8 weeks of gestation, all early fetuses are universally female. If testicles are present, testosterone is then secreted beginning at 8 weeks and those fetuses become male. The rest, sadly remain female. So, we all theoretically can have inherent emotions that gravitate towards either side of the spectrum. Just as it takes time for the fetus to develop into either a male or female, in adults we can also see that full evolution into a GAY man can take months, years and, for some, even a lifetime.