Everybody seems to be discounting the OP's own feelings here for the sake of their own fantasies. The OP said he felt uncomfortable about this situation and that it approached rape for him. All you other people have no grounds to tell the OP that his feelings are invalid.
Macungie - if you don't want to do this, you don't have to do this ever again. Not for the sake of your fuckbuddy's pleasure, and certainly not because complete strangers on the internet think it sounds hot. If you think your FB and his friends weren't being respectful of you and what you wanted out of this scenario, then you have every right to feel violated and upset. And if he pushes you to it or refuses to listen to your concerns, then he's not a person you want in your life.
Yes, some people get off on the thought of being used for other men's pleasure, even a group of men. It sounds like you're not one of those people, and you absolutely shouldn't be made to feel wrong for that.
Just because you were hard doesn't necessarily mean anything one way or the other - the body responds to sexual stimulus without conscious control. You have the right to feel safe and respected in a sexual encounter, and nobody else has the right to tell you otherwise.
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