Send it right back. Say "That's funny, I was thinking pretty much the same...that I would not be comfortable fucking your pussy unless you also have a tubal ligation, and you're financially stable enough to take care of your own shit...and no damn way we are ever getting married or living together, so you can have the opportunity to harvest my assets, but here's a thought, if you learn to deep-throat and take it up the arse, you won't have to worry about getting preggers."