[Vigilanteman]

Until very recently, it was a mystery to evolutionary psychology why men prefer women with large breasts, since the size of a woman's breasts has no relationship to her ability to lactate.

It is no mystery at all. Big boobs are a lot more comfortable to look at, lay on . . . or rub your tiny man boobs against.

When looking leads to touching, caressing and southern cave exploration, they also get your male member erect much quicker and facilitate cave entry, stimulation and the natural contractions and discharge of your man sack.

[Fhios]

I was thinking of something simplier. Motorboating.