I thought if Anya sat on the wiener weave of my old chair for a while, she'd have to have delightful marks on her even more delightful little round butt afterwards.
But no. Either she didn't sit on the same spot for long enough, or, more likely, her little round butt cheeks are just too firm and full to be impressed by a sitting pattern.
Anyway, my power-level patrons can see quite clearly that there are no geometric impressions down there at all, while other delightful things come out very clearly instead :-)
Here is a preview.