If you look closely, you'll see faint lines and there is a seam on her side
under the leggings that further supports that she is wearing a thong.
Thanks, I appreciate your analysis! I was definitely seeing the slight bulge on her right side that panties (especially thongs) often seem to have where the fabric comes together. But to me, I almost see another faint line on her butt where the "Y" and "N" are that could
maybe be panty (bikini) lines. It could just be a slight wrinkle in her leggings that's just playing tricks on my eyes, though.
Either way, I am absolutely loving these pictures of her booty and hope to see many more like them.
This is all speculation, but fun nonetheless! Also, Taytay wouldn't be caught dead with a full back pantyline so that leaves commando or thong.