What's that on the floor? It looks like...oh, they're her panties. They were the ones she'd been wearing all day yesterday.

Inspecting them, sweat stains, and some pussy juice too. Holding them to my face, tasting them, smelling them, my cock getting harder.

I can't resist, slipping into those stained panties, my cock strains the waistband, thoughts of them being next to her pussy and ass for hours.

Stroking myself, balls tightly held. Not going to last long.

Cumming into them, soaking them with my fresh load. She's not going to want these back now. I'd better keep them.