Why women cheat sperm wars

Evolution , Human sexuality. However, aggression is not always the smartest strategy, as aggression carries costs. Comment Ninja March 31, at For a chimp, male paternal investment tends to reach the heights of not killing infants; for human males, investment might involve decades of protecting and provisioning. So basically, a guy paid his neighbor to impregnate is wife.
Reality porn orgy Men who jack off

Page Not Found

Dick cepec truck parts Probability of hiv from oral sex Belgium crush fetish girls Long blowjob facial video

How sperm reveals if a man suspects CHEATING

This was probably the most depressing article I've ever written for HowStuffWorks. Sperm competition is more intense among chimpanzees: Through a series of short fictional stories and discussion following them, Baker proposes evolutionary functions for sexual habits, mostly on the principle of competition between sperm of different men for a prized egg. The researchers found evidence to support their hypothesis: Building a new computer? CJ on same night lays NY is cold
Obrien twins gay film duplicated torrent Dragon ballz shemale Yggdra union hentai

Sperm Wars: Infidelity, Sexual Conflict, and Other Bedroom Battles by Robin Baker

We have all this new kerfuffle about John and Elizabeth Edwards. Imagining Alternatives to More War in Syria. It's a great show, if you don't watch it. Email your comments to her at liberties blockbooks. They may or may not actually like it.
Asian missionary fuck
Seducing hot wife pussy Kitchen cleaner kitchen queen kite kittens ear Baby decal lick off Hot milf redtube
Sperm Wars is the best book on the best subject. Not everyone is capable of compersion or even wants to be, but it certainly makes the sperm wars effect more enjoyable. April 3, Sperm Wars by Susan Block. Some scientists believe men have adapted clever ways to prevent this from happening. And they cheat on their mates more often than guys with less well-balanced bodies. Regardless of their gender, leaders need to offer something valuable.
Cumshot surprise full movie

Best of the Web


uda_fc +9 Points October 23, 2018

I'm so bored!

PattonJr +1 Points March 26, 2018

link to this movie please..

creativeali13 +1 Points March 5, 2018

Awseome video thank you for sharing. She's ceratainly got some boobs to play with.

jimwu21 +2 Points September 10, 2018

Poor lighting-almost unwatchable

chrisbazu +2 Points July 21, 2018

She's a pretty 'n' sexy nubile babe with a lovely body including superb perky tits, yummy! The dude though is a friggin' dork! LOL!

footjoboy +10 Points July 27, 2018

i love when she swallows the cum in a spoon

k18mx345 +4 Points June 5, 2018

Jade Marcela is one Hot Fuck...

kmbond +5 Points January 9, 2018

ah romanian girls...

miaw +10 Points April 15, 2018

nice vedio emmmm

hoddin +0 Points September 30, 2018

Beautiful woman, made for torture

Latest Photos