>>13587627Kek
It's worth noting that Becky (and her mom) were airline prostitutes. They would proposition lonely businessmen and meet up with them at a hotel after they landed. There was an article in Maxim magazine about it.
All that is to say, Becky has seen a LOT of dicks, different shapes, sizes, and colors. She knows Seth is below average. But her biological clock was ticking so she had to settle down.