Mike sighed in delight when Anna dismounted him, feeling his cock slide backwards out from her pussy felt delicious. But also delicious is the way how she walks now over to Matt, her father and just mounts him there. It made his cock twitch from the sight but from Anna's tone she sounded tired. She has been fucked several times today already so Mike would give her break. He amusingly thought what it would be like to just fuck girl silly, beyond their stamina and exhaustion levels? Would it actually start hurt them to cum or would they pass out from pleasure before that would happen? These thoughts made his cock throb and grow half-hard already. But he just watches how Anna and Matt will have fun for now.....