He lines the machine up with her longing wet pussy and turns it on slow, so it taps the outside of pussy for teasing. After a few minutes, he starts turning it up faster. The tip of the dildo pops in and out. Yet, when she least expects it, he turns the machine up, going all the way in, and stretches her tight cunt. Katie is trying to thrush from side to side, hopeless to escape the dildo intrusion. James sits on the chair in front of the machine and enjoys the show as Katie having orgasms after orgasm. He grabs a vibrator from the table and puts it in a glass pump, tapping up her clit. It confined into a vibrator at full speed, causing her to squirt twice. He turns all the machines off and takes out the cuffs and the suction tube. Katie's nipples are now swollen and sensitive enough for her to moan with a small touch. James carries her to a bed that is next to the lab. He lays her down and then cuffs her hands and feet to the bedposts. James then pulls out his hard, aching cock and slowly fuck her swollen, sensitive pussy. Once they both cummed, Katie clenches her sensitive pussy muscles to suck and pump every last drop.
James uncuffs her and lays her on the floor. Before Katie regaining her strength to move, he restraints her legs up in the air and spread them apart, so her pussy and ass are both on display. James then places another fucking machine that controls the pulses sizes, which the fucking machine starts getting more intense pulses, stretching her cunt even more. While this machine does its work, he lubes up a curved thinner vibrator and shoves it in her tight ass, wavering in and out at a steady speed of 500 revs per second. With both machines working ruthlessly to her holes, James then brings another fucking machine that has a little circle rubber brush and spins around at 650 revs. He puts it on her swollen clit, which she starts to scream as the machines are not letting her up as Katie looks like she about to faint from the pleasure. James turns it all off and uncuffs her. When she has composed herself, he takes her into the restroom and gives her a cup of tea. Katie still trembles from all the orgasms she had, but she satisfies with the pleasure that all the machines give her.