Scenes
53 min
ZFX Productions
Guinea Pigs 4
Three beautiful co-ed lab volunteers participate in a bizarre BDSM experiment. Tightly bound and gagged, their reactions to pain and pleasure are tested. A petite blonde looking for extra credit ends up bound and gagged by a professor. A brunette with big tits is whipped and given electro shock tests. Finally a lanky blonde is electro shocked, then hooked to a device and fed a bag of synthetic cum while her perky tits are machine sucked until she is cumming.
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Sources
StashDB 2026-10-28
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