My last partner was incredibly sensitive about their breast size.

I find any chest size a good size, though a little one is nice too.

My last partner was incredibly flat, and she kind of felt bad, but as I said before, I prefer a little one.

During the first time we had sex, she was super sensitive about everything. So I told her to take it easy. She wanted to try to give me a paizuri (breast job, for those people who still have their dignity). Ever received a paizuri from a person that's flat as a chess board? Put human skin on a xylophone then run your dick on it, you'll feel the same experience.

Anyway, I told her I wasn't really feeling it, and they were sad about it, then I felt bad about it. I just told her to use their mouth and it'll be fine.

Later, they told me:
"Don't worry /u/osamasbigbro! If I'm anything like my mom, I'll start to grow boobs once I hit 12 years old!"

Then I just laughed and said:

"Haha! That's not gonna happen. Boys don't develop breasts like girls do."

Edit: Grammar