Your reading posts about, "Kissing"

Kissing: The Kiss was developed for protecting babies say scientists

The kiss was developed, “to spread germs” and inoculate females pre-pregnancy say scientists.
Kissing was engineered as a way of passing germs, particularly from male to female which build up immunity to illness through the most efficient method, the kiss. Scientists say, kissing the same person for about six months provides the best protection.
The gesture [...]