Downstairs to face whoever is there.

You waddle down to the living room. On the sofa are two twins of a daughter model and what must be a sister model. They were watching television until you entered their field of vision.
"Dad, what's that?" The twins ask simultaneously.
"Shut up, Erin, Kristen," the sister tells them.
"No you shut up Aunt Tina," they say together.
"Sue said I had to dress like this, because I apparently like incestuous girlcock."
"I can confirm he does," Katie smiles.
"Dad? You want our cocks?"
The two are larger than Katie, while Tina is closer to Abby's size. You waddle over to Tina.
"Wow who taught Dad to walk like that?" The girls ogle your behind.
"So bro, you look like you are dressed to get fucked," Tina says as she pulls off her top, freeing the cock sprouting from her cleavage.
"I'm a little loose right now, Tina."
"Then maybe we should DP you, Dad," the twins announce.
One clambers to her feet and guides you. The twins lay out and bring their cocks together as you waddle over to them and clamber up.
"Now Aunt Tina needs to replace the plug with something, right Erin?" Kristen asks.
"Right! Aunt Tina, find something long and hard for Dad."
"I have just the thing!"
Tina slides aside the ass of your suit and pulls it over your cheek and does the same to your thong. She pulls the plug out, and cum starts flowing out until she sticks her cock and the twins' to block your hole.
"Seems we skipped DP, girls," you laugh.
"Sorry Dad, I guess Mom worked you too hard."
The three cocks jockey for space up your butt. Together they finally **** you open, and you sigh as you ride down their lengths.
"Sue is going to eat her words on this one," Katie observes.
"Wonder how many of these I can fit at once," you ponder.
"Well if that wasn't a 'step right up', I don't know what is," Katie announces.
Tina quickly heaves herself to one side. By the time Katie has her tits and balls settled, you are nearly completely engulfed by the four sets. Katie pats your severely distended rump as she forces her way in. She is insistent but not reckless. You can't do anything but wait. You can feel the weight of all of the dicks in you. You hope you can fit Katie's as well, and then you do.
"Four dicks, all for me. You are all too kind!"
"Yeah, Mom worked him too hard," the twins state in unison. You start to get rocked and they do their best to hump you.
"I like how heavy your dicks are in me," you tell them.
"It's gonna be heavier. Can you take it? Do you want it?" They all ask in rapid succession.
"That's what I expect when I let a cock up my ass. One or twelve at once, I gotta take the cum too. Even if it's more than one load."
"I can cum now," Tina says. "Should we alternate?"
"Should we?" Katie asks.
"Well I'm going to cum soon. So you better go quick," Erin tells them urgently.
"Give me a minute, let me build up," Tina tells her.
"Okay I'm going," they all announce. "Oops..."