Bigger vs Small Tits - Sister and Friend Compete Using Brother - Titjob

Fifi argues with her friend about whether guys enjoy bigger or small tits. Gia has a much bigger chest than Fifi, but Fifi swears that there must be some guys out there that enjoy small tits. Gia gets the idea to use Fifi's brother to see which he prefers. He gropes and licks the girls' tits, then the girls give him a titjob for a final decision.