>>16045
To me it's arousing on several fronts:
1)Tights, especially white ones, represent one of the core concepts of "babyhood/little girlhood". Parents, on special occasions, dress their daughters in white tights when they are babies until they are 8 or 9 years old or whatever – when they start to be ashamed of wearing such item, precisely due to how "childish" it is perceived to be.
2) There is also an aspect of ""embarrassment" for an adult woman to wear it, which in an adult baby context, I find arousing as well. I like the fantasy of woman being "forced" to dress like babies, and seeing a woman, which had all high heels, and leggings and whatever, having to wear some white tights and marry janes, it really makes me horny.
3)There is something arousing in the way they wrapped around the legs and press against them, a way in which they cover the diaper and the texture they add to it.
Also, what
>>16094 mentioned. I have a tights/pantyhose fetish and an ABDL fetish, both. The reasons are similar, pretty much in the same way "white tights" represent the core concept of little girlhood, a pair of sheer "pantyhose" was one the core concept (especially until the 90s, when I was growing up and possibly developing many of my kinks) of womanhood. Woman back in the day wore tights.
Even nowadays, on more conservative environments or on really fancy occasions, like some weddings or church services, many women still wear them, so there is that.