Suddenly Billy raised up and held something up. Was it a bottle? What was he doing? "What are you doing?" Bobby demanded.

"I'm lubing her ass, Bro," Billy laughed. "Don't tell me you haven't done this yet!"

"Whoa, wait. What?"

"He's going to fuck my ass," Amber whispered. "It's okay. You can do it, too, if you want." She took his face in her hands and kissed him deeply, again tongue kissing him as Billy held onto her for balance as he stood on the bed and began to rub the head of his cock on her nether ring.

"What do you want, Baby Sister?" Billy teased.

Amber, her breath...