Yawn Causes Orgasm
griffin+row, Tiny Fox Lab

Some Users of the antidepressant Clomipramine have an unexpected side effect of spontaneous orgasms after yawning.Tiny Fox Lab Facts

Approximately 5% of the people, both male and female, who take it experience an orgasm or intense sexual stimulation or some other “unusual” feeling every time they yawn!

Preview photo credit: griffin+row
Source: http://baillement.com/clomipramine.html