Ah, yes, Orangutangs having oral sex. I remember witnessing this once when I was visiting the National Zoo in DC. Noticed for some reason, the other zoo patrons were glancing into, then zipping past the Orangutang enclosure. I, on the other hand, felt it my duty to point out (fairly loudly) to my wife that she should come over to the enclosure because the orangutangs were having oral sex.

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On the kinkometer, my kink measures as a sine wave.