My school had a lot of girls with fully developed C or larger boobs (and not on fat girls).

Felt up a super busty red head in class (teacher was sleeping at desk and told us to "study or whatever, just keep quiet"). She was sitting on my lap and facing away from me while she was casually talking to a female friend of hers off and on. So I put my hand under her shirt and rested it on her stomach for a bit. Then my hands went to the outside of the bra. She giggles and leaned back closer to me. Obvious green light so I reach back, unhooked her bra and was fully cupping, rubbing her Ds under her large sweater. At this point the female talking to her sees what is happening and blushes and goes back to her reading.

After a few minutes, I decide to see if I can reach downward. Since she was sitting down, I couldn't really get my hand very far, but I felt the very top of it and then moved and felt her butt for a bit. Looking back, I seriously can't see how we got away with this in class. Imagine the trouble that we could have been in and the phone call to the parents.

We weren't dating but periodically went out and smashed after that.

I professionally ran into her recently. Was told that we were going to have a guest in a meeting and guess who walks in. They were about to introduce her and she hugs me and says that we know one another. I'm sure everyone knows what that means at this point. Again, like most women my age, she did not take care of herself well. What a shame.