I swear, some of the best jokes are sexual: even sex itself is hilarious! Now I'm not in favor of the returning to the promiscuous 60's and 70's; but, can't we at least see the humor in it? Why the extremes of "Sex, woohoo!" and "Sex is a serious matter, there's nothing funny about it!"
For example, I think breasts can be too big: at some point, a man isn't all "Awesome titties...can I play with them?", more like "Would she work as a flotation device in the event of a plane crash?"
I may be a virgin, but I think the only way to truly appreciate sex is to have a sense of humor about it; because, in the end, it is love not lust that makes a relationship work.
Now, love: that is a serious matter.