DeathDomokun
Ex-Bluelighter
Have you noticed how often you say you're not (going to) brag(ing) when you're actually bragging?
If two men blow in a woman their sperm competes to fertilize the egg.
Whichever man comes first has a head start for his sperm.
Therefore whichever man is more turned on by a MFM is more likely to come first and more likely to pass on their genes and their genes contain the coding that makes them more turned on by MFM.
This evolutionary adaption to cheating polyamory and so on unfortunately has the unintended side effect of men seeking out that situation so as to experience the heightened arousal and pleasure.
However it must be beneficial more times than not otherwise evolution would've selected against it by now. Anything that is truly maladaptive is always weeded out by evolution so there must be more wife's cheating than men willingly sharing.
But that doesn't mean you see them erect I guess? So not really a point of comparison... plus, some men are very insecure about the size of their cocks (obviously, not you) so seeing other men in action who don't care if they're average size, even less, and are able to let it go and bang away can be quite liberating and uninhibiting perhaps?
word up- whip it out boys...