Hope when Margeret finds some time, she might like to give some info on this Model.
She goes by Amira Love and the web said she is 5'10" tall with some 44LL/M Cup.
I wonder abot the 44, cause if I understand the meassurement correctly, this number stands for the underbust value. with 5'10" tall and weighting 141lbs,
I think she is slim and might only be around 35" in underbust
?
Also I have one second question, i hope Margaret can explain:
What is the reason of having two letters instead of the next one in alphabet?
As I understand the system of cup meassuring goes letter by letter, so after a D-Cup comes an E-Cup, but sometimes an E-Cup goes under DD-Cup and the tripple letter DDD is similar to an F-Cup?
I would understand if the double letters stands for inbetween sizes, or even if it is like in Excel where after the last X-collumn it goes on with double letters 
I don’t mean to be rude, but the photos of this woman seem odd. Almost as though they’ve been photoshopped. Is she a real person?
In any case, I’m not convinced she’d be a 44 back, I suspect that was (or is) a marketing ploy. Even if she’s 5’10”, the bodyshape in the photos I’ve seen of her don’t match with my experience of a 44 back. Certainly not any I’ve ever seen. I suspect she’s somewhere around the 36-38 back size, and possibly in the KK cup range. But the size she is in the photos available online is so inconsistent - and her face looks badly photoshopped on to someone else’s body.
In terms of the double letters in bra sizing, no-one really knows why it came about. There’s a lengthy article on Wikipedia about how bra sizing came about (the letters were an attempt to standardise the manufacturing process, because in order to make a bra that fits exactly, you’d have to make a different one for every woman - so they grouped them into cups and lettered the cups according to the letters of the alphabet: 1 = A and so on). It was only later that they realised they needed very subtle variances in the cup sizes and had to add new ones; a D cup proved to have more variance, so they added another D (so as to not have to move every other subsequent letter up one cup size and confuse everyone in that range). And it just stuck.
UK cup sizes are different from US, and just about every other region or country in the world has their own system. It’s hard to say which one works best - I’ve always worked with UK sizes, so it’s difficult for me to adjust to another system. They’re by no means perfect - bra fitting is an art, not a science. For example, you have a variance known as “sister sizing” where a woman could fit into a 32FF, but also a 30G or a 34F. (Up a band, down a cup or down a band, up a cup). It’s because the corresponding change of band or cup size makes up for the lack or increase of band/cup material.
It’s always best to remember that the band and cup sizes are just a guide. A bra is best fitted when tried on.