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Venus and Bella pretent to be lab technicians in a sexual arousal study. The goal of the research is to determine sexual identity in males. With electrodes hooked to his cock, Sam sits in front of a monitor playing porn. When he starts to get turned on, the electrodes measure his erection. When a scene from TsSeduction plays, his rod starts to perk up. He is told he only likes sex where he sticks his ramrod in a slit, but his knob is saying otherwise. Every time the on screen male gets his butt fucked, Sam's weenie gets harder. This is just the results Venus and Bella were hoping for and not because of the study but coz they can now fake a set up for "part two" of the trial and have him use his now hard knob on Bella before Venus gets in there with her own cock. This hawt medical play threesome is a feature shoot and has some precious ass fucking and great 3some sex. Sam gets used and tossed out like one of those paper sheets!