Me and GF was watched by our Avon lady once ! Long story short, our bedroom was on the ground floor, with the path to our front door passing right by our window, one summers day gf was giving me a nice "straight out of the shower" blowjob, although the drapes were closed, there was a small gap and with the window open she must of caught a glimpse and overheard us, I happened to see her peeking through, so being horny and gf unaware, I spoke slightly louder, saying things like " oh god suck my cock deep" held her head, told her to lick my balls, and finally came in her mouth with long slow strokes and all accompinied by me making all the porn sounds. She watched the whole show.