She kept her hand still as she gently squeezed and sucked.Mom watched, her fingers back on my nipple, and told Karen to slow down and be patient."Make...him last, sweetie," Mom instructed, "don't rush it."Karen slowed down, removed her hands, and went deeper down. She sucked back up slowly and pulled her mouth off."Mom... I'm dying to ride it... please?" she said with a pouty face."You better not cum in her," she said to me as she pinched my nipple.Karen smiled and jumped over on top of me,. These were shiny steel plates built into the base of the machine, if she stepped on them, the machine would activate itself, and Cheryl would be under it’s control.Slowly, she began to close the door, allowing a slither of light to come through, as she held it open just an inch. Even so, it was quite dark inside, and she knew if the door was actually closed, she would be in pitch blackness. Not that light was needed for the machine, but she did prefer a little light, even at night in her. After I got cleaned up Ray Ray grabbed my leash and lead me out with my whole ass on display but as we went out he turned to go around the side of the building instead of to the truckstop. I didnt care I just followed him. It was darker on this side of the building but it had large parking lot with lots of cars and as ray ray lead me to the center of the parking lot a car door at end of lot opened and I saw a large a****l jump out of the car and he was running towards me. I realized it was. Then, when I thought I was about to explode, my dick was out of her and she turned around and offered her arse towards me. She stood by the chair, holding its back for support, teetering on her high heels and thrust out her buttocks. “Come on love, up my bum!” she commanded.There was more cheering from the floor as I pulled her arse-cheeks apart and positioned my engorged dick against her anus. I put a hand in her pussy to get it properly lubed up and then put as much of the goo in her anus as.