Slavery: A series of erotic games (book 02)
Master started untying us and I rolled off Lisa's body, feeling limp and overcome with languor.
Master slapped the inside of my thigh. "You're not done yet," he said. "Your sister slave needs to be fucked too. Go get one of the strapless dildos."
"Yes, sir," I said, too tired to scamper out of bed, but jumping out anyway. I got one of the toys, a vibrating one, and returned to bed. Lisa was sucking Master's cock in an effort to get him hard again, half successful already. I joined her, sucking Master's balls until he was hard enough to fuck her.
Hot Chapters