The door opened and a figure slipped through; a naked female briefly backlit against the light. A finger was held against my lips, soon replaced with a kiss.
Then going down, she took my my flaccid cock into her willing mouth. I hardened as, up and down my shaft, sensation moved until, shaking like a landed fish, an orgasm ripped through my body.
I tasted a hint of my own cum on lips that kissed me goodnight, and then she'd gone.
I reckon she must have got the wrong room because, even today, I have no idea who she was.