You feign satisfaction.

"Ahh, that's one full ass I have!"
"Glad to be serviced by that ass!" Jill exclaims as she pulls out. Despite not being totally filled, you still feel cum running down your leg. "Now then, turnabout is fair play with a shemale, so how about you lube me up with my own cum and fuck my ass?"
"Ok," is all you respond with. Even though she didn't completely satisfy you, she is still hot enough to turn you on!
You go take a seat on the couch, and lube your dick with some of the cum running down your leg. She hops into your lap and lays her cock on your chest. Then she grabs your dick, and rubs it in between her buttcheeks.
"Do you want to suck my tits or my dick as I ride you?"
"Do your tits give milk?" you ask.
"No, you didn't ask for that. Kay, here's my cock." She puts her cock at your lips and you grab it and play with it as she lowers herself onto your dick.
Her ass is wonderfully tight. She seems to like your dick too, you figure, since you are licking up a lot of her precum. You put your free hand on the front of her tit and squeeze it. She moans and rides your cock faster. Her balls slap your belly hard and her tits land on your shoulders each time.
"Give me your cum and I'll give you mine," she whispers. That gets you off within seconds. You cum hard up Jill's ass as you suck down Jill's creamy thick cum. It tastes so sweet without any bad aftertaste. Jill lays down over you after she finishes and you are still licking her clean. "You like the taste, huh? Keep going. With your dick still up my ass, I can muster another load in a few minutes." She rests her head on the tit resting on your left shoulder. You can hear her cooing lightly as you keep licking her dick. "Here, I'll hold my dick. Grope my nuts. Milk me," Jill whispers.
You release her dick, and reach between your bodies to grab her package. You can feel her ass clench your soft dick when you squeeze it. You run your hands over it, heft it and generally **** it.
"Didn't anyone ever teach you how to milk a cow? Just squeeze it," she purrs as she nibbles on your ear. Each time you squeeze, her ass clenches like before, so this must be how she likes it. "Oooh baby, this cow is about to give you some cream!" She quivers a few times, then her cum gushes into your mouth. You eat it all. She just lays there on you after she finishes.
"That was good," you tell her after a bit.
"Yea, but I am worn out."
"Well there is a bedroom prepared for you. The shower is shared, though."
"That's fine," she giggles, "I won't mind surprise visits. I hope you don't either!" With that, she gets up, and walks off. Too tired for another go, you wait until she is finished showering before you take one too. Then you head to bed.