Has she retired from porn?
Not as far as I know.
Some of the women do measuring videos to verify their size - but I haven't seen Ava do one. Most seem to over estimate their size rather than underestimate. I think you may be right she has the wrong size.
Having looked through her YouTube videos, I now have a much better sense of her height and build. She is literally tiny. When you see her framed against a doorway, she is so small and her frame is so light. It’s bizarre, because when you see her in photos, she looks tall and statuesque - almost Amazonian. She is literally about 5’3”. I’m 5’5” and I thought I was small (although, I have a fairly broad back). She is so petite and lovely. (I think I might be getting a crush here).
So, this gives me new information to go on. She has a tiny back, so there’s a good chance that the reasons she’s wearing 34DDD is not about her back/band size, but supporting her boobs. I understand she has implants, which makes sense for her to wear bras that fit in the cups and her boobs can be pulled up by the straps - it’s really important when you have implants to get bras that encase your boobs in the cups and keep them in place, otherwise the implants pull at the muscle tissue and start to droop. However, it’s bad to let the straps do the hard work - in the long run, it creates back and shoulder problems - and it means her boobs aren’t getting the support they need.
So, a 34DDD is roughly a 10” length difference from underbust to overbust, which means she could probably be doing with a 30GG or 32H for proper support.
It really all depends on how it fits. I’d have to see a recent video of her in a bra to be sure - but I think she’s definitely not wearing the correct fit.
I’d love to do a proper fitting for her - I suspect she’s not comfortable in those bras, but, like most women, she’s got used to it and it offers some reassurance and shape.