The most important muscle in kissing is the orbicularis oris, also known as the kissing muscle, which allows the lips to “pucker.” French kissing involves 34 facial muscles. A pucker kiss involves only two. ... In fact , several ancient cultures thought that mouth-to-mouth kissing mingled two lovers' souls.
1)“Kiss” is from the Old English cyssan from the proto-Germanic
kussijanan or kuss, which is probably based on the sound kissing can make.
2)A woman in China partially lost her hearing after her boyfriend reportedly ruptured her eardrum with a passionate kiss. Apparently, the kiss reduced the pressure in the mouth, pulled the eardrum out, and caused the breakdown of the ear.
3)The science of kissing is called philematology.
4)The insulting slang “kiss my ass” dates back at least to 1705.
5)Lips are 100 times more sensitive than the tips of the fingers. Not even genitals have as much sensitivity as lips.
6)# headerApproximately two-thirds of people tip their head to the right when they kiss. Some scholars speculate this preference starts in the womb