Dude i can totally sympathise with you there..But hey, i figure, practice makes perfect right?
For me, being forced to cum (in real life and not just fantasies) would be so HOT! It'd be incredible. I expect that loss of control and total domination by someone else would make me feel like i'd surrendered truly and, i guess in some ways, make it *ok* to come.. Tho that may be going WAY too into it, and analysing why sometimes it feels wrong to feel pleasure like that (brought up a catholic, am bi, blah blah blah).

Ho hum!