No

"You can't grow a cock, but we can make your clit nice and big," Monica informs Mrs. Barstone. "Sadly, it won't shoot cum, however."
"Oh, that's fine. Can you grow my butt too?"
"Sure, but we will need to grow your hips and thighs if you want another passenger," she says while pointing to your belly.
"I understand. I have carried plenty already. Never one up the butt, though!"
"There are only two of them, and we have dibs, mom!" Judy tells her.
"Yeah, we get them first. You have one already," Violet adds.
"Oh, well that's true...so you will both have to be working those asses. These two are rather large," Mrs. Barstone says after clearing her throat.
"Violet is the furthest along," you tell Judy with a pat on her butt.
"She had help! But, I can do it without!"
"These boobs are really big, Sis. You'll hurt yourself without a bigger butt."
"I've had a little before, that's enough. Pretty sure I will look ridiculous when I'm done, though!"
Judy goes into a split and wraps her legs around your breast. You feel her butt flexing. Her hole milks...no sucks on your nipple. You start to feel her insides on your aereola. Being slippery as you are, you don't catch on her skin. Her cheeks grab a bit more, then clench it together, and finally suck it in.
"See, no prob! Not like I haven't stuck big things in here before! My butt is big enough!"
Judy continues sucking on your breast. She doesn't just get the fleshy orb, but sucks a steady stream of your milk out as she goes. Her belly will end up even more absurd than Violet's. While her cheeks are larger than they were originally, they aren't what you would consider optimal for tits of this size. You already see the effects. Her butt, already fully displaced, now begins to be pulled around your tit as more girth enters her ass and her hole widens. She looks silly, but she is still doing it
"Wow Judy, you really are doing it! You remind me of me," you tell her with pride.
"So you know I can do it, then."
You can't help but feel milk squirt at that. This girl is managing to get your entire breast into her butt. You can see how talented she is. Her hole keeps stretching wider as she goes. Even after her hole goes from her pussy to the top of her crack, she keeps going and it pushes her pussy forward. Feeling wet, you know her wetness is cascading down your orb and not any liquid of yours.
"Judy, you are really going to do it?!?" Violet exclaims.
"Oh yes! My pussy is stretching on the inside as it pulls forward! All the way between my legs from the top of my cheeks to almost my belly button will be my asshole," she squeals as she pulls her legs up under her armpits and next to her ears. She is really flexible. You see that her entire bottom is now stretching around your tit; her meaty cheeks are pulled thin. She's getting there. Then you feel a huge set of pussy lips flop onto your lower torso as your tit feels warm all over.
"I did it! Told you so!"
"Well I didn't doubt you," you say.
"That is quite the feat," her mother congratulates her.
"I never managed that much, comparatively," you continue.
"Well I'm a girl, I'm made to stretch. You are made to be...rigid. You really can't compete."