It was just too much for me, and I yelled and growled as I came.....my sperm bellowing out the end of my cock into her asshole, filling het bowels completely with the white tadpoles I had held in there for so long. Her entire ass and pussy were drenched with semen, and when I finaly removed my cock and stood up, Fiona, in a final act of nastiness, dropped to her knees and sucked my cock clean. My cock, that had just cum deep inside her ass after fucking her rectum for almost fifteen minutes.
She licked it, sucked it, lapped at it and then looked up at me, through her cum soaked eyes.
"Thanks Steve. I think I've paid my debt."
My reply was simple, and given between panting breaths.
"That you have my dear. That you have."