I noticed he was now naked and his dick was sticking up in the air with a hand wrapped around the shaft. I nervously went over and sat next to him. ...hat when I saw the raised platform in the corner three or four meters away. It was shielded by the staircase leading to the upper level and was therefore out of sight of the main dance floor. It was covered in purple cloth and was heavily padded.“Everyone, this is Lucy,” he said. “It’s her first time.”“Hello,” various people said.I recognised. .....was she intentionally flashing for me?Chloe walked out from the laundry room, looked at Cindy, and stopped. In a condescending tone she barked “Really? Go put on some underwear- you can see right through that”Cindy looked to the ceiling, flipped her hands out in exasperation - “jeeze- you’re always telling me what to do... you aren’t my boss”And stormed back into her bedroom. Chloe rolled her eyes, clearly unconcerned that I might be aroused by her little sister. “I have to go up and do. ” 
He got up out of the bed and walked toward her, then threw her on the bed face down. “Bring your ass up” he commanded, she did as she was told, he reached over and grabbed the toy and placed it in front of her. “put it in your mouth and get it wet” while she did that he reached over and grabbed the belt and without warning swung it across smacking her ass. 
She felt the sting and continued sucking the toy. He swung the belt again this time causing her to cry out, he took the toy away from. Bob started eating her pussy while she was sucking my dick again. Then we switched and she was sucking Bob, while I was eating her. When she started to shudder, I went from eating her to cramming my dick in her pussy to the hilt and she exploded into orgasm. At the same time, Bob started cumming again and so did I. She pulled Bob’s dick out of her mouth and let him spew his jism all over her face while I continued pumping and cumming. We all collapsed in a pile on the living room floor and lay.