The study targeted a range of human sexual configurations -- straight men, gay men, straight women, and lesbians -- and hooked them up to a device called a photoplethysmogram, which sounds incredibly technical, but basically just measures how DTF your naughty bits are at a given time, which would probably do great on the retail market.
"So I just tried this thing and it said I'm at 150 percent. I could really use your number right about now."
After that, the study participants were shown a variety of porn -- gay, lesbian, straight, and just naked people walking along a beach like it ain't no thing -- and were asked about how turned on they were by each individual video. Of course, because they were also hooked up to the genital equivalent of a lie detector, their "honest" answers were measured against the horrid truth. The results were about what you would expect for men and lesbians -- gay men were aroused by gay sex, lesbians by lesbian sex, straight men by heterosexual sex. Straight women showed varying degrees of arousal during all of the iterations. But that wasn't the most interesting part ...
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Shockingly, Amish porn did nothing for the Amish.