Well, just to make it clear, I am perfectly okay with it...I mean, yeah I'll admit that it would be nice to finally get to that point, but I know it's nothing he is doing "wrong" or that he "can't"....it's just new to us (full swap) and I know he must be putting a lot of pressure on himself to perform well. He's a fantastic lover and he knows how to please a woman, that's not the problem at all....(oral, etc..) it's just the part when it comes down to actually having sex.
He is the one who is wanting to try Viagra to see if it may help him during our vacation. I'm the one who wasn't real sure if it was something he should do or not...I just don't want him having a bad reaction to it and getting sick or something, b/c whether or not we're having sex, we want to have fun and be able to enjoy ourselves. We're not that new to this...we've been in this lifestyle for over 3 years and we still have a lot to learn, but we're not "newbies", but up until this point, we have not full-swapped, so it's like we're "starting all over again" when it gets close to that...
I'm going to have a talk w/him and see what he feels comfortable with..thanks to all for your replies!!