Hi Julie,
I actually disagree with the other 2 posts.I do think you were assaulted. Whether or not it fits the legal definition of "rape", the feelings and the emotional impact are similar. I'm sure there's other factors that contribute to your emotional response, but a.) you were touched against your will, b.) your "no" was not respected. You said no, and he kept pushing your boundaries. The other posts said that you could have removed yourself from the situation-- well, I suppose that's true, but that also sounds like a lesser example of "blaming the victim." No means no, and he should have taken no for an answer and left it at that. Yes, you "opened your mouth" but was it due to fear, due to his consistent badgering, due to normal muscle movements, or due to the true desire to suck his d*ck? It's difficult to know, and it's probably not exclusively one thing. It doesn't sound like he shoved his d*ck down your throat but he was trying to coerce you into giving in. This was not consensual-- consent is not defined by an absense of no (which you did say, by the way) but by the presence of a yes (which you never said). A yes that is obtained through coercion or manipulation is NOT true consent-- it's mere compliance. The courts don't recognize this and it's hard to measure, but its a concept that sexual assault crisis service programs adhere to. I'd recommend getting in touch with your local program (you could probably find out the # through the school) for some emotional support (of course your therapist and pdoc, if you have one). Good luck.

Sam