Not that this contributes much to what has been said, but i have tried different things with my gf. She definitely seems to respond, albeit orally, to occasions when i kiss/lick from under the breast, round the outside, sucking gently as i go, until i reach the top part. Also rubbing gently on her nipple as i progress upwards, just giving it a little tease.
Sucking with my mouth clamped onto her breast seems to work and licking at the same time.
Although too much of this and the effects start to wear off.
Sucking with my mouth clamped onto her breast seems to work and licking at the same time.
Although too much of this and the effects start to wear off.

I adore breasts. During fore play, when sex is going to be unrushed, I make love to breasts. My SO is not well endowed, but she has ample, meaning she is 34B.