Kevin is shocked to find out who else is in their baby group on The League. "The Breastalyzer" is the fourth episode of the show's fourth season.
Added:

The League Season 4 Episode 4 Quotes

Ruxin: No knives.
Rafi: What if there's an attack?
Ruxin: It's a bunch of children and mothers in a pool.
Rafi: That's exactly when I would attack!

Breasts are meant to be ogled and fondled, not tugged at like some raccoon pulling at a trash bag.

Pete