Those were happy balls rolling and then squeezing up tight as he pumped his cum deep inside her pussy. The best place for cum to go is as deep inside as you can get it, then wallow in the warm slippery mess you have made. Excuse me I got to cum now.
God damn, god blessed him well with some of the biggest testicles I’ve seen. Seeing them squirming and heaving with sexual pleasure before uncontrollably releasing their thick sperm into her in orgasmic euphoria is a sight to behold. Makes any man jealous and insecure about their own pair of balls.