Study suggests that the First Kiss evolved around 21 Million Years Ago

Preliminary study suggests the first mouth on mouth kiss evolved around 21 million years ago. 

First kiss dates back 21 million years, say scientists https://www.bbc.com/news/articles/cr43gq61g2qo

CAPTION COMPETITION?/POST YOUR FAVOURITE IMAGES OF NON-HUMAN COUPLES KISSING. 

https://www.sciencedirect.com/science/article/pii/S1090513825001370/pdfft?md5=e1ea4caeab89f2b4e59207ec92a2d90d&pid=1-s2.0-S1090513825001370-main.pdf

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  • Personally I think kissing is gross, especially with tongues!

    Quite the opposite for me, whether a gentle smooch (no tongues) or full on tonsil hockey, so long as it is with the right match of partner and both our oral hygiene is in good order (way too many stinky breaths out there).

    It does have a lot of parallels to intercourse so can be great foreplay or a good way to gague how uptight your prospective partner is in the bedroom deparment.

  • guess there's an evolutionary advantage to exchanging saliva with others, you pick up small amounts of bacteria, most of them are friendly ones, but some aren't.

    I’ll take my chances and avoid. 

    Kissing is meant to release love hormones such as oxytocin and dopamine, yet kissing would likely cause my body to release cortisol. Body contact is sometimes acceptable, but only if the person is a very good friend. I’d much rather cuddle up to my dogs.