I'm not Bi at all but I do like looking and touching and sucking on any size
heheh . I was like a D in high school but didn't know what I had
till I was getting stared at all the time .. lol
Above 34C? Love 'em, whether MM or not. Just don't have them tied on so tight that they're like thunderbolts or torpedoes. I can also take eraser nips too. It depends on overall body size, proportion and well, age.
Generally speaking, breast size is way down the list when making a selection for a play date. My personal faves are c's and d's but I like most any pair. As long as they fit her frame and look somewhat her natural size then I will take a second look. Most important is sensitive and reactive nipples. I love nipples that respond to my efforts. Of course there are always exceptions, like when I all of a sudden crave some really big ones for a bit of Russian.