Professor of Science and Human Biological Studies Dr Vanessa Cambridge of Harvard University theorised that the chemical reaction from kissing was different between members of the same sex vs members of the opposite sex and commisioned a study with two of the campus' female students.
"When female saliva mixes with the saliva of another woman this causes a chemical reaction in each womans brain, releasing a burst of the hormone oxytocin, often referred to as the “love hormone,” It tricks the brain into thinking that both women are ideally suited to each other to both mate with and reproduce children. The longer the women kiss and exchange saliva the higher the dose of oxytocin they both receive. This stimulation in turn triggers deep feelings of arousal and attraction having tricked the brain into thinking the two females are perfectly matched to reproduce with. The next time you watch two women kissing notice how it becomes more passionate and aggresive the longer they remain with their mouths pressed together" - Dr Vanessa Cambridge PHD Science and human biological studies Harvard University.
