Well that's me told.
It was the second link in particular that made me feel sad. I think she looks very very young and the posing is so tiresome, in the context of what look to me like dozens of Lolita fembots, so I gave in to a spell of handwringing.
PutThatPomBearBack yes, I've had a look at the usual suspects but ASOS do tall (one-piece) swimwear as well, which is the alternative to the skirtini/tankini/etc-ini. Maybe it was because I'd been looking at sites where the models were static (no 'catwalk' videos) and looked older than 20, ASOS was a bit of a culture shock.
SomeOtherFuckers that is not what I intended at all, you are of course a real person in real life walking around in 3d. It was the posing and prancing on a website of what I think (and apparently it's just me) look like very young girls that made me feel it was a bit wanky/porny. Not of course in the sense of actual porn, but that porny aesthetic of American Apparel and Larry Clark.
I find a lot of retail/advertising ultra-sexualised, ugly and reductive and I am upset by the relentless pressure on women (especially young women) to be sexy, so maybe this was the straw that broke the camel's back.
Thanks for the replies. It has given me some perspective.