[bryony]

My breasts haven't become erogenous in the slightest.

Same with my wife. My guess is that all unintelligent mammal females experience intense pleasure as an incentive to allow babies to suckle.... weaning comes with sharp teeth!

By the time human females mutated the loss of that pleasure, they had developed sufficient intelligence to realise that they needed to feed their babies.

There was no longer an evolutionary pressure to maintain the "feature", so there's probably a 50/50 chance of not having it.

That's my theory, anyway.

The upside for me is that I no longer regret having to have breasts in order to maintain a healthy mind balance. The "compensations" make it more than worthwhile! Erogenous feeling seems to increase with size, but I have no means of working out if it is proportional

Apologies (if required) to the OP for continuing the off-topic discussion!

B.