I really love Louis CK, but I understand that a lot of people don't connect with him. If you're not familiar with him, he's much more than a shock comic, which you might think from this topic. He has a sort of humility and honesty when he broaches more disgusting topics, so that you sort of go with it, where other comics would just draw blank stares if they said what he said. This joke was definitely one of the one of the more cringe inducing in the routine, but the way he did it was still hilarious.
So responding to that bit as a half joking, half serious hypothetical, I say sure. Why not, if they were nice about it and they were clean? Louis played up the butt-ugliness of this person for laughs, but let's be real here, when you're in the act, what would be worse than her being super ugly is if she were just bad-tempered or smelled terrible.
I could make it happen pretty easily with some quality exercise the week before, and as far as this being without love, I'm not as stringent on that as I would have been a few years ago. The whole idea of falling in love and finding that one person is built up and hyped so absurdly, but it's not the only possible context for hooking up. Woody Allen said, "Sex without love is a meaningless experience, but as far as meaningless experiences go its pretty damn good," and in a way he's right. In this case, it wouldn't even be meaningless, you'd be doing a good deed. As long as you're both clear that this was a one time thing, which is probably more accepted an arrangement than it used to be, there aren't any problems.
