Bebi, I can't speak for the A or AA cup ladies, because I've never been quite that small. My first boyfriend never had any difficulty burrowing his cock between my breasts when they where a B cup. This guy happened to prefer small breasts so probably would have been happy if mine were smaller.

My current boyfriend actually prefers to rub his cock across my nipples most of the time, rather than between my breasts, so again I still feel the size is not hugely important to our enjoyment. He is a big breast fan and the extra attention he gives me there is what led me to learning to orgasm from breast play.

I'm not sure if having my daughter in itself changed my breast sensitivity or if it was the timing of my current relationship.

Like you, I find my breasts are sensitive in different ways. My left one is more sensitive to pre-menstrual discomfort and my right one is more sensitive to pleasure.

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