Grandpa fulfilled his bet and satisfied his friend's wish by having sex with his granddaughter. He and his buddy watched as the young girl got pleasure from her grandpa's old cock in her tight butt. The granddaughter was no stranger to anal but had never gone all the way with her grandpa. He kept her anus lubed up with his prankster and his friend got in on the action too. Grandpa and his friend both enjoyed watching this hardcore anal sex. Grandpa won the bet and they all got off with a bang!