Even on this strangely humid fall night, she sported her best rendition of a witch, complete with detailed make-up and a fantastically elaborate hat. ...he party she went to was in a yoga studio - a wide open area with lots of drinks and cushions to lay around on. Anyone was able to crash there, as the transit shut down before midnight. There were two full bathrooms and a loud boombox - it was a fine enough time.Darcey's Halloween was perfect. It was the next morning that was not. She had to get. We returned to the film but none of us could really concentrate on it. I once again had an arm around each girl and a hand on two wonderful big uncovered tits. The girls were giving my cock some really good attention, again alternating who was pulling me off and who was massaging my balls.The surprises continued after the girls moved their heads together in front of me whispered something then gave each other a long slow snog with lots of tongue. When they came up for air, Ali moved her face up. Kelly whispered in my ear, "I know a guy who would pay big money to watch you and I in bed together" I wasn't sure at first if I had heard her right but I heard myself ask, " Would he fuck both of us?" She answered with, "He just wants to jack-off into your panties and keep them as a trophy" I had never heard of this but it sure as hell sounded sexy to me! She knew she was turning me on even more and took my hand and led me to our bed.As soon as we lay down together our tits were tightly. I was both concerned but curious, she was not making any sound or complaint, as he clearly was deep inside her bottom and working his finger hard, thrusting hard enough to make her wince slightly.I dont know why I did not jump up and stop him but I was mesmerized, both by his audacity, and my daughters complicity.I could feel the dull ache of sexual response in me, and to my horror I realized his sexual assault on my daughter was turning me on a bit.He was watching me and taking advantage of.