The big 'O' in sex is not orgasm
www.nma.tv/ Girls, do you ever wonder why even though you are not initially attracted to a guy, you fall madly in love with him after you do the nasty? Well, it might be love at second sight, but it also might be oxytocin. Oxytocin is a hormone that is secreted when people hug, kiss, and have sex. It is also secreted during child birth and breast feeding. The hormone induces feelings of lo ...
新增時間:2012/01/19 17:10:36
+0900 (JST)
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影片原始網站: youtube.com