Firstly I tied his ankles together, then his knees. Len wasn’t resisting at all which was just as well, but I decided he needed something in his mou...h, so I looked in the laundry for a used pair of tights, screwed them up into a ball, lifted up the stocking over his head so I could just get the nylon ball into his mouth.Feeling quite proud of my work so far I decided to reward myself. I grabbed a vibrating cock ring, placed over his manhood and turned it on. I then straddled Len, and let his. . The events of the night before started to come back in pieces. The club, dancing with that kid, "Mark", she thought his name was. Making out with him, him getting her off under the table, her playing with his cock.... And then she was floored. She remembered Carla walking her out to the SUV and what happened after that. She started to not feel good as the guilt hit her. "I fucked that guy in the back of Carla's Escalade.", she reached for her neck and felt a welt. She jumped out of her bed. I would never cheat on Alexis, but the thought of watching those two in lesbian passion had my cock stiff again. A couple of songs in, Alexis waved me onto the dance floor and I joined the girls for a dancing threesome. Throughout the next few numbers, both groped me in subtle ways, although neither so naughty it could be taken as anything more than dance floor rules. Either way, it kept me hard as a rock and once a slow song played, I pulled Alexis close for some alone time. We danced in. Very soon, on one of the inward strokes, I knew the moment had come, the nerve explosion was starting at my penis core in my groin, rushing outwards, tensing my arse, stomach and thigh muscles. I tried to withdraw from her mouth, as I knew the explosion of seed was coming. But she would have none of that, she literally applied an air lock around my penis, locking it in her mouth by suction. My oversensitive nerve endings had the muscles in my core contract, the prostate released its lock, seed.