I know exactly what I want.

I was hanging out with my pal D____ at a coffee shop by his apartment in the T.C's, where I have been visiting over the weekend, and I took the time to fully interrogate my feelings vis-a-vis the attractive barista at the corner coffee shop:

I want to knock her up.

Not saying it's a good idea--not even saying it's likely--but that's the particular kind of "do" that I would like to do to her. I wonder why. Is this some sort of reptile "spot the best breeding partner" kind of reaction? Isn't that what all sexual attraction is technically supposed to be?