I don't think anything really exists, she never wears any super revealing swimsuits. Closest I have found/heard of are these two:

This one there's definitely a bulge down there, could be a bush: https://40.media.tumblr.com/485cb803342862be99cffdf7c1d76b51/tumblr_nisuobj70g1qb86xno1_540.jpg

And this http://i.pi.gy/LN5Nq.jpg is one of her first modeling pictures she took right when she got famous. A few years later the photographer posted on their blog a behind the scenes thing that they had to re-do the picture a couple times because the jeans were too low and "showing too much of her fuzzy side"

The blog doesn't exist anymore but I will never forget reading those words