Final solution for Tits vs. ass.

Only humans have naturally permanently enlarged breasts, and therefore, preferring ass is preferring the more primal sexual secondary characteristic, while breast gang are sophisticated gentlemen appreciating the beauty of the human female body.

Further evidence is seen in the mating act, with doggy style – where you can see neither tits nor ass – being the prime copulation mechanism for the animal. It is for this reason the preferred position for fornicators (sex with no relationship).

Similarly, twerking is an obvious ape-like reversion meant to promote n-selection mating.

Whereas the display of the breast signals a woman's ability to nourish a baby for years, thus showing a willingness for k-selection strategy.

What could be more intimate and humane?

Consider how the increasing amounts of women getting railed by dogs conduct their "business". Do the breasts have any part in the mating act? Is ass not emblematic for their primitive and uncivilized nature?

Yet another pervert, the pedophile, will by nature also have no other choice but ass.

The same applies for homosexuals. I have yet to see a gay male cherish a pair of man boobs. Lesbians on the other hand tend to have smaller breasts.