No, you are interrupted.

A knock on the door interrupts you.
"What?" you both answer simultaneously. Oops! You answered without thinking Abby was supposed to be in here alone.
"Abby? Why is your father in there with you?"
"Uh, Mom...he is helping me with something," she half-lies.
"Nothing to worry about, sweetie, I'll be done shortly."
You hear a key turn in the lock. Crap, you didn't think to hide the key, which was resting on a nearby hook. The door opens and she closes the door quickly once she sees the situation.
"What do you think you two are doing?!?" she angrily addresses you, fortunately in hushed tones.
"Well, Abby needed help washing herself--"
"I told you to never help her wash again! She is just using you to find that big dick of hers a warm ass to fuck."
"That's bullshit! Look how big she is! She could never wash herself properly alone! That's really bad, hurting your own daughter because she is bigger than you."
"She doesn't have a bigger dick, in case you had forgotten!" Your wife quickly tears her clothes off in anger, ruining them. She is well endowed (compared to the base specifications you submitted) in the tits and balls department, but still smaller than Abby by a fair bit. Her cock on the other hand is both longer by at least a foot and substantially thicker. Her erect cock, unlike Abby's, juts out from between her tits and balls rather than up from her cleavage. In this way, her cock head lands on the curve of your ass.
"Wow, Mom, that's a nice one!" Abby compliments.
"Shut up, Abby. I thought your father was just interested in me, but apparently even his own daughter isn't out of bounds. You go ahead and enjoy yourself, honey. You won't be draining yourself this time," she addresses you. "You want to fuck your daughter's cock overstuffed with cream filling, keep what she gives you. Show it off. If you can even move. I'll give you a nice sexy thong and a skin-tight bodysuit for showing off your nice big cum-filled belly. How's that sound? Maybe that will teach you to wash your own daughter ever again, like I told you!"
You resume fucking Abby. Your wife robot (you still don't know her name) does not move her cock as it starts leaking precum down your ass crack.
"Daddy I'm gonna cum," she announces within a few minutes of your ministrations.
"Go ahead, honeyboobs, empty your balls into me. I'll be fine."
"Ahhhh..." Abby sighs as her firehose of a cock makes you think of that analogy with the volume of cum she produces.
"Ohhh..." you start to moan as your hands on your belly are moved out and away from your body. It reaches a certain size then starts to sag down. "Ahhh..."
"Daddy? There's still a lot to go..." she says quickly between heavy breaths.
"Keep it coming, honeyboobs," you tell her.
"How's that feel? It's only going to get bigger. You think you learned your lesson?" Your wife bot's resolve seems to be wavering.
"No, not yet. My belly isn't resting on the ground yet...nevermind."
"Daddy wow, you can do it!"
"I think you learned your lesson, get off her," your wife bot orders.
"I'm still learning, actually."
"Well then after that, you can "learn" my cock too, if you don't stop this instant!"
"Like a cock leaking that much wasn't going to be getting a turn," you say dryly.
"Almost done, Daddy...there!"
Your belly is about the size of her balls. She slowly backs out of you. You are bent over from the weight.