When you arrive, the room is dark.  You can only barely make out a shape on the bed.  As your eyes adjust, you see me roll over ... and realize I am completely naked.  The room is cool, perfect for sleeping, although little chance of rest tonight with what you have planned.  The bed sheets have fallen aside exposing my breasts and the coolness of the air has made my nipples hard.

Or maybe it's anticipation.

As your eyes wander, you can feel your pants becoming uncomfortable.  Even in the darkness of the room, you are keenly aware that your excitement is becoming obvious as your cock swells and bulges under your clothes.  You are aware ... and so am I.