If she's at all reasonable she'd be fine with an average dick, or somewhat smaller/bigger. I would prefer large and perfectly shaped secondary sexual characteristics, an optimal body fat percentage, unused holes, and so on; but I'm trying to be a reasonable person so I don't demand more than what's needed to have a loving relationship. I'll find a way to work around any shortcomings, within reason (actual dealbreakers would include not being that into me, cheating, etc). If I would reject someone for being too loose, or having small tits, or even being a little stupid or whatever, it'd be highly immature and the opposite of resourceful. Not that it matters much in my case, since I don't have women to reject, but you get the point.