Fruit Bat Fellatio.

Fellatio by Fruit Bats Prolongs Copulation Time
Oral sex is widely used in human foreplay, but rarely documented in other animals. [...] Female bats often lick their mate's penis during dorsoventral copulation. The female lowers her head to lick the shaft or the base of the male's penis but does not lick the glans penis which has already penetrated the vagina. Males never withdrew their penis when it was licked by the mating partner. A positive relationship exists between the length of time that the female licked the male's penis during copulation and the duration of copulation. Furthermore, mating pairs spent significantly more time in copulation if the female licked her mate's penis than if fellatio was absent. Males also show postcopulatory genital grooming after intromission. At present, we do not know why genital licking occurs, and we present four non-mutually exclusive hypotheses that may explain the function of fellatio in C. sphinx.
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12 Responses:

  1. edouardp says:

    At least you didn't set the movie to autoplay.

    Although (sigh...) when curiosity overcame my better judgement, I was somewhat disappointed by the soundtrack. I mean, seriously, how hard is it to find 70s porn music on the interwebs?

  2. azul_ros says:

    Quite interesting. The embedded image or whatever it is doesn't show up for me. Even when I tried copying & pasting the code.

  3. Hypothesis five: Because they can!

  4. taskboy3000 says:

    I've come to depend on these kinds of posts from you, jwz.

  5. lnghnds says:

    At present, we do not know why genital licking occurs

    They spend too much time in the lab.

  6. greyface says:

    Presumably extended copulation is something that most wild animals are bred to avoid? Unless I'm missing something, sexy-time is a dangerous time for most animals. (Maybe hanging from trees helps?)

    I'd guess that the bats are licking the penis to say "Finish up all fucking already" (PFI)

    • lionsphil says:

      It doesn't work, then:

      A positive relationship exists between the length of time that the female licked the male's penis during copulation and the duration of copulation.

      • greyface says:

        Correlation is not causation.

        If a male bat is taking too long and the female gets bored and starts licking, and that accelerates a slow copulation, what relationship do you think you'd find between licking and copulation duration?

        It's entirely possible that the study actually proved me wrong by checking that the licking started early (thus showing causal POWER, even if not actual causation). But I'm a lazy fuck, just like my putative bat-dudes.