From my episode searching on file sharing programs, I found a series that have BE. This series is called Cosplay Complex, its group of girls that have their own Cosplay club for their school. If no one knows what is Cosplay, it's the short term of costume play, another way to show your fandom for your favorite Anime and video game series by dressing up and portraying a character of that series.
So far, I've seen the first two episodes and they have one BE scene for each episode. Chako, the main girl of the series, has a bunny-girl dressed fairie named Tarumo. Tarum has the power to transform any form of clothing or accesory, mostly cosplay costumes for Chako. Chako is young and has small breasts. So whenever she cosplay a busty character, Tarumo transform into the costume of that character and increase Chako's bust size to make the cosplay perfect. The BE is not really big, but it is fun to watch.
In the series, there is Jennie Matel, a transferred student from Italy who happens to be into cosplay as well. The fact that I mentioned as well that she's busty. Problem is that she have a [censored] complex, an obsession for girls under 12. Weird, isn't it. Overall, the series is pretty funny. You can find Cosplay Complex by Kazaa and WinMX, but it will be pretty hard to download it since it rarely have any resources.
Oh yeah, another series that I like to mention is Arcade Gamer Fubuki, about a girl named Fubuki who is trying to become as one of the best arcade gamers in the world. One of the characters is named Honey, an American arcade gamer who is into dance games like Dance Dance Revolution. She's pretty busty as well and bouncy. So there is my Anime BE find, comments are welcome.