AAoT - Go to your parent's room
From Create Your Own Story
You go into your parents room. You dad already left for work, so your mom is the only one in there. She is sleeping and you think of leaving. Instead, something catches your eye. On the nightstand next to her is a bottle of anal lube. She is sleeping on her stomach with her legs partly spread, and you can make out her ass in her panties.
You walk over quietly and put your hand on her ass over her panties. She doesn't stir. You place your hand at the bottom of her ass and slide it up so you can feel her ass on your flesh. Again, she doesn't stir. You slowly pull her panties down, which your mom is oblivious. Carefully, you manage to get them off and set them aside.
You rub her ass with both hands, and she continues to sleep. You spread her ass, revealing her asshole, and you decide you have to fuck your mom in her ass. You put plenty of the lube on your dick and slowly force it into her asshole. The feeling of her ass tightening around your cock is incredible. Somehow your mom sleeps through it.
You slowly work your way in deeper and deeper until you can go no further. You start to pull out, then push back in. You increase the movement, and are surprised your mom sleeps through it. Finally, you can contain yourself no more and the cum flows deep in her ass. Once satisfied that all your cum is in her asshole, you pull out.