boob rest 

When a guy has his girlfriend laying down and using her breast as an arm rest.

Hey, can I use you as my boob rest?

boob rest by SherwoodLIVE August 5, 2014

resting boob

What your tits look like when your nipples aren't hard yet.

You've got great resting boob, girl

resting boob by Womendoitright August 4, 2018