Those tan lines

[Dark passenger]

Ok so I’m wondering what thing underwear these girls wear that produce those sexy tan lines that go up over their hips? Everything’s always even and when I wear things I can’t ever get the sides to rise up that high. Thanks in advance

[Dark passenger]

I didn’t check. I meant what thong underwear do they wear. Closest thing I saw was the bikini cut bathing suit thong. It seems like even when I pull the sides all the way up, they slide back down to either even with, or lower than my hip bone. I’m looking for the look that all the Brazilian girls seem to have. When I tan I want the lines to be up higher than my hip bone. Even when I google search what I’m looking for, nothing seems to match what I’m looking for. So I’m basically asking the ladies this question.