Kissing is the act of pressing one’s lips against another person or object. One might kiss for a variety of reasons, as a kiss itself carries many different meanings depending on the culture and context of the situation. A kiss could express sentiments of love, passion, sexual attraction, friendship, peace, affection, good luck, and so on. In certain situations, kissing is also done as a formality or symbolic gesture that indicates devotion, respect, or sacrament. While it would seem that such a practice would be particular to humans, scientists have observed kissing and kiss-like activity in other species, such as the antennal play of some insects, the billing of birds, and even similar behavior in dogs, cats, bears, and chimps.
Kissing releases a burst of oxytocin, referred to as the “love hormone”, which stirs of feelings of affection and attachment. Some kisses are rooted in attachment, romantic love, and some are spurred by your sex drive.
A butterfly kiss is when the eyelashes are fluttered against someone else’s skin or eyelashes. The fluttering will give the sensation that the other person is being kissed by a butterfly.
A French kiss is also known as a deep kiss. The participants’ tongues extend to touch each other’s lips or tongue. This stimulates the partner’s lips, tongue, and mouth, and it has proven to stimulate endorphin release and reduce acute stress levels.