# Copulins? Why do they exist?

**URL:** <https://pheromonetalk.com/t/copulins-why-do-they-exist/2831>\
**Category:** Men's Pheromone Advice & Field Reports\
**Created:** [March 30, 2007, 10:32pm UTC](https://pheromonetalk.com/t/copulins-why-do-they-exist/2831 "2007-03-30T22:32:01Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![nbully79](https://avatars.discourse-cdn.com/v4/letter/n/c68b51/32.png) [@nbully79](https://pheromonetalk.com/u/nbully79)\
**Post date:** [March 31, 2007, 5:23pm UTC](https://pheromonetalk.com/t/copulins-why-do-they-exist/2831/6 "2007-03-31T17:23:36Z")

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> [@Lor](#):
>
> i do NOT know where you got that information from, but if you ever come across it,let me know.
> 
> i have never heard that but it was very interesting.
> 
> i bet pheromones do play a part here, but then i would guess they would “think cheating” if they smelled cheating, which might only be the female producing more copulins in response to another male,or her own? does he smell androstenone (hmm maybe not, she produces some) or 'Androsterone where he shouldnt?  
> godhand, now you made me think

I think this is from the book “Sperm Wars” by Robin Baker. One of the most interesting books I have ever read on this topic! Really enlightening about human sexual behavior, why and how we seek partners the way we do!  
It doesn’t talk about copulins or pheromones though.

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