coastal-boy
Literotica Guru
- Joined
- Mar 12, 2006
- Posts
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I don't know if its true or not but I assume it is.... When I was a teenager all the girls sharing the same locker room would have their periods at the same time or around the same time ... How would our bodies know how to time themselves in that way other, then because of our sweating/smelling together?
Some of my research has used mice, guinea pigs, cattle and horses. If you keep them close enough for a couple months, their estrus cycle will synchonize without any manipulation of outside variables. But there must be a male present for the effect to occur. I think it is called the Whitten effect.