I know what you mean. I’ve been wearing thongs since 2003, and I get excited whenever I put on a thong. I like it when the strap gradually slides up my ass. But then, I pull the strap out of my ass just because I don’t want the strap to cut too deep into my crack. And before I put on my pants, I adjust the front and the back of my thong, making sure that it is just below the waist.
Also, the color of my thong depends on the shirt I’m wearing. So if I choose to wear a blue shirt, then I put on a blue thong.