In case you're wondering, that's not really what this research found. Sadlyhttps://twitter.com/VICE/status/899609548536807424 …
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Bascially, using pupil dilation and - in a smaller sample - genital arousal as proxies, the researchers found some arousal regardless of the sexual preferences when showed same-sex pornpic.twitter.com/8snmz3ppE2
So, self-described straight women would still have pupil dilation and some genital arousal from lesbian porn
But you can be 'aroused' for lots of reasons. The term doesn't mean SEXUAL arousal, it just means increased blood flow, dilation etc
Does pupil dilation mean that these women were sexually aroused? Maybe. Could be fear, anger, disgust, all emotions that can trigger similar arousals
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