When I was in college I used to give head to some of my "Straight" guy friends that lived in our dorm. I found that once they understood that I wasn't going to expect them to suck me, and that I was not going to tell everyone about it they were into it. Some of them only did it as a one time thing, but there were four guys who I sucked off on a pretty regular basis. One of them also really got into me rimming him too and another one eventually started fucking me on a regular basis too.
Oddly enough, my roommate was a really cool straight guy and he knew I was giving head to several of our friends, but he never had me service him. We are still friends. I asked him why he didn't ever have me suck him off. He told me that one of the guys I sucked off all the time told him he ought to try me out. He was still a virgin and was afraid to do anything with me because he didn't want his first time ever having sex to be with a guy. He was also worried that since we were already roommates it could get complicated if he had me servicing him all the time.
Oddly enough, my roommate was a really cool straight guy and he knew I was giving head to several of our friends, but he never had me service him. We are still friends. I asked him why he didn't ever have me suck him off. He told me that one of the guys I sucked off all the time told him he ought to try me out. He was still a virgin and was afraid to do anything with me because he didn't want his first time ever having sex to be with a guy. He was also worried that since we were already roommates it could get complicated if he had me servicing him all the time.