...is not the name of the new porno i'm starring in.

but srzly, i got a new B-17 narrow today, and though it's possibly positioned wrong (kind of doubt it), it hurts my ass like i'm riding on a plank of wood. :\ i'm 5'7" / 125 lb., with a definite boney ass. i'm wondering if any other skinny people have had problems breaking these in or whatever.

gimme some advice cuz this thing looks so f ucking nice, i just want it to feel good on my bum. about where should my butt bones be on top of?