The missus loves having me sit down on the sofa, before she then slobbers all over my cock and bell end until its rock hard and my bell end is shiny wet and bulbous then sits herself down on top of me so that my cock goes up her arse and her full weight is down on me so that my bell end is right up inside her rectum and stays there.
I am then trapped in position for however long it takes her to watch her favourite soaps and she reckons its such a good feeling having my bell end prodding at the far end of her rectum and colon she gets tinglings in her fanny.
Each time she laughs or talks I can feel her sphincter muscle grabbing onto my shaft and this keeps me fully erect and often I come close to cumming but I dont want to make a mess everywhere when she eventually gets off my cock.
We did it like this once in spoon position in bed, she wanted to fall asleep with my erect penis inside her anus. She managed to go to sleep and I cum in her ass. I fell asleep with my dick inside her ass hole, then the cum went cold inside her warm ass and it all woke me up but I didnt want to slip my cock out cos that was holding all my cum inside her.