# Copulins? Why do they exist? **URL:** \ **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:** 4
**Author:** ![Lor](https://sea2.discourse-cdn.com/flex016/user_avatar/pheromonetalk.com/lor/32/759_2.png) [@Lor](https://pheromonetalk.com/u/Lor)\ **Post date:** [March 31, 2007, 4:38pm UTC](https://pheromonetalk.com/t/copulins-why-do-they-exist/2831/4 "2007-03-31T16:38:05Z")
> [@Godhand](#): > > I don’t know how relevant this may be, but I read some study that said that men produce more sperm when they think that their women have had sex with someone else. This has been explained as an evolutionary mechanism designed to beat cuckholdry. It could possibly be explained through pheromones… 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 'rone where he shouldnt? godhand, now you made me think --- _[View the full topic](https://pheromonetalk.com/t/copulins-why-do-they-exist/2831)._