Interracial sperm competition

Motile sperm are the kind that are capable of moving themselves by swimming. The strongest finding read the paper for the data was that men who thought the pornography was "more explicit" than what they'd seen previously had a much higher percentage of motile sperm and much higher concentration of sperm per volume. Archives of Sexual Behavior. Let's review the key findings. This was certainly the case for one Reddit user, who described how eight years of cuckold fantasies eventually led to the end of an otherwise healthy relationship. Webb Justin L. Those primates that have multi-male mating systems tend to have bacula that are larger in size, in addition to prolongation of post-ejaculatory intromission and larger relative testis size.

But I was young, little more than a kid really, so I wasn't familiar with all this evolutionary theory. Savage pleasure compilations 3: Black Masters 80 min Blkgod - k Views -. I hadn't had any pussy for a while and I'd been too busy at work to even think about jacking off. My whole groin had a hot buzzy feel and I felt full an swollen.