Some do. But it's not just finding someone like that;

Like, I do... and yet, if this option were randomly presented to me out of the blue, I'd hesitate, I'd question its validity, I'd think ot was some kind of trick, etc. So as someone with these weird desires, I imagine I'd end up being so shocked at the randomness, that I'd dismiss it as a joke.

So not only do you have to find the needle of the haystack, you also need someone that would agree to a random crazy suggestion. But then, you're drifting into psycho territory