What is (and isn’t) effective in trying to land a partner more attractive than you are?
Contrary to our assumptions, we find little evidence that performing oral sex on a partner or experiencing sexual intercourse early in the relationship increases the probability of matching with a physically attractive partner. However, we find that, for males, using a condom at first sex with their partner decreases the likelihood of being matched with a physically attractive partner. Importantly, in models stratified by race (results not shown) we find that the penalty for high weight is greater for white women than for women overall and that having sex early in the relationship increases the probability of matching with a physically attractive partner.
Source: “What It Takes To Get the Pretty Girl or Cute Guy” from Julie H. Carmalt, John Cawley, Kara Joyner, and Jeffery Sobal, Cornell University