38D

You flip the tag to see ‘38D’. It’s branded in your mind.

You would’ve guess they would’ve been smaller since they’d stayed so hidden, but your sister-in-law has been walking around with fat tits this whole time. God, they probably bounce like crazy when she walks, or when she rides your brother.

You take another glance at the bra. The sheer black fabric. You wonder how your cum would look splattered on it.

Your cock is hard. It wouldn’t take too long to ruin that sexy bra.

You reach to grab and steal the bra. The hanger it’s on slips off the towel rack and clatters to the floor.

“Hello?” Your brother’s wife calls from the other side of the curtain. “Is anyone there?”

Shit.