My wife came back from a night out with the girls, drunk, and climbed into bed next to me. She pushed her ass up against me and wiggled it wanting some attention. She doesn't like the thought of anal, the closest I can get is stroking her asshole if she's really horny and i'm eating her out- and that's taken 5 years of gradual convincing. All except one time when she was similarly drunk after a night out when I managed to get a finger in her ass while fucking her from behind - no complaints but she was horny and so drunk she may not have realized or remembered as she passed out with her ass bared to the world when we'd finished anyway.

Anyway, this other night I started stroking her ass and then got my head between her legs while she was laying on her side. She pulled a leg up to her chest so I started to lick her asshole. I stopped and she wiggled her ass at me again so I carried on. Pushed my tongue in and got her all wet and slippery, then slowly pushed in my middle finger and got an appreciative moan. I flipped myself around and carried on fingering her ass, adding a little lube from the nightstand, getting my index finger fully in and my thumb as she relaxed more.... And then realize she had fucking passed out asleep while I was finger fucking her ass!
She lets me near her ass, encourages me, after a night out with the girls and drunk and then passes out! So, frustrated, I beat off and came over her ass and back and then went to sleep.

Next time i'm going to stick my dick in her ass, fuck her passed out body and come in her ass. See if she can work out what happened when my come is leaking from her ass the next morning.