Wow! Those poll results are amazing.
I actually have done mutual masturbation with my best friend from high school. It began one night when I was sleeping over at his house. We had been pretty open about masturbation and sex and girls for a while, so it wasn't a big deal. We also often looked at websites to find the best strategies and methods to provide the most pleasure and almost always ended up reading about guys who have mutually masturbated, performed oral on each other, etc. This night, however, we decided to try to do it to each other. It was terrifying at first but then we became pretty comfortable with the idea and it turned out to be amazing!! After a while we tried oral and eventually anal.
Some time ago, he had broken up with his girlfriend and I could tell he was really horny. One night he asked me if i wanted to try having all-out sex with him (not passionately, but mutually). I was really unsure about the idea, but i figured, we're both straight and have (or have had) sexual relationships with girls, so why not? It was a great experience-much worth the sacrifice of giving pleasure for receiving it. While, yes, these are "gay acts," we both prefer sexual relationships with girls. Also I have found that because we have this very comfortable relationship with each other, we are much better friends. We still get together every once in a while during a college break for a mutual masturbation session.