As Sammy walked inside the door, she suddenly plucked you from her head. "Hey, you'll forgive me for this, right?"
"Forgive you for what—_ooomph!"
And barely a moment later, you were pushed down deep into cleavage. You wound up struggling against her soft, pillowy bosom for a few moments, before casting some spells to help you out: A respiratory spell to ensure you could breathe, and a minor strength spell to ensure you could move around. With the latter's conferred power, you tried moving back up, only to be poked back down by Sammy's gentle claw. So instead you made your way to the front of the breasts, peering through the tank top fabric to see what's going on. And what you saw was spellbinding: A Purugly anthro, as big as Sammy was, showing off her figure in similar clothing. Her form-fitting sweatpants were blue to the Snorlax's silver, and her shirt was clearly stretched across her massive rack such that her midriff was left exposed. There was no doubt about it, this was Pauline.

"Hey girl!" she called out, turning around as the door opened and waving at Sammy. "Where've you been all day?"
"Oh, y'know, around," she answered, rolling her shoulders. "Found a nice spot in the forest to take a nap."
"Did you now~?" She leaned in close, close enough that you felt her boobs smush against Sammy's—and she was no doubt reaching around to grab at her ass. "Seems like you say that every time you find a napping spot. Are you sure it's not just all that junk in your trunk making everything you sit on plush?"
"Eheh, y'got me." Both girls laughed, the Snorlax's making her rack shudder around you like an earthquake, and then they came in for a brief kiss before their bodies finally parted. "So, uh... how things going for the girls' night? Anyone else plan on showing up? Maybe Alice or Stacey?"
Pauline put a paw to her chin in thought. "Alice... might be able to pop by? Stacey can't though, said that it's all-hands-on-deck at her mother's restaurant."
"Aw, jeez... still, eleven people at a party's nothing to sneeze at!"
"That it is! ...Hey, there a reason you're fussing with your boobs so much?"
No doubt she was trying to make you stop moving around, but for whatever reason Sammy didn't pull you out and show you off. "Uh, well, no reason—wanted to make sure I didn't leave any crumbs in my fur, y'know."
"Ah, I getcha, I getcha. They're a bitch to comb out."
"Preach, babe. Anyway, I better figure out something new to wear before our little party tonight," she said, and you held tight to her fur as she began to walk off. "See you 'round, Pauline."
"Don't spend too long picking something out! I want to spend some time cuddling ya before the others get to hog you!"
"Gotcha~"

A few steps later, and Sammy had made it into her room, closing the door behind her. It was only then that she finally fished you free of her bosom, fixing her top afterwards as you silently dispel the respiration and strength enchantments. "Sorry about that! Hope your stay in my cleavage wasn't too suffocating."
"I-it wasn't," you reassured as Sammy set you on a desk, though you were now a tad curious how a magic-less person would've fared. "T-though, why did you try and hide me from Pauline like you did? She seemed nice enough..."
"And she is! The heftiest and friendliest kitty this side of town~" she said with a wink. "But I felt it'd be fun to just... keep you secret a while, y'know? And show you off once everyone's showed up for girl's night."
"Ah. G-guess that makes sense." With that cleared up, you decided to take a look around the desk. The majority of it was taken up by pictures of Sammy and her friends; there was one that had her relaxing with a Ursaluna (Ursa, you recalled) in the sun at a beach, another that had her facing off against a Hariyama (That must be Harley) with both in sumo wrestling clothing, a picture of a chubby Goodra (Gotta be Giana) hugging some tiny humans to her belly during a rainstorm, and a selfie from some party that had her with a Nidoqueen (Natalie, I'd bet) who was grinning whilst showing off her massive, cream-colored breastplates—you felt your face flush, unsure if that was considered nudity or if these Poke-anthros even had any shame about it.
There were also a few pictures of 'mons you didn't recall her mentioning—a Miltank leaning her massive udder against a fence, a Lapras carrying Pauline on her back that had either a Staryu-styled bra or actual Staryu as pasties, and one pic of Sammy licking her lips next to a Steenee and an Alcremie, both of whom were half her size, similarly proportioned, and blushing profusely. "Hey, who're they?"

"Oh, suppose I didn't tell you everyone, huh?" She leaned against the desk, boobs smooshing against it as she pointed them out. "That's Miley there, she runs a creamery in town selling the freshest and tastiest ice cream straight from her udder—Lauren's the one giving my babe a ride there, you'd never guess how fast she is in the water even with those boy-toys on her boobs—and those are Stacey and Alice! Such tasty little friends, they are~"
"Y-you eat them a lot, I'm guessing?"
"Mm-hm! There's a few more that I love to eat, it's fun to have 'em use my stomach as a little clubhouse!" She smacked her gut, and the paunch rippled and jiggled for what felt like a minute afterwards. "Stacey's been pretty busy recently, though; her mom runs one of the fanciest restaurants around, so things are always packed there. But maybe I can introduce you to her once she has a day off—you're, what, twenty, twenty-one in human years? You'd be just as old as she is, then."
"That would be nice. Shame she won't be going to the party." You figured that Miley and Lauren would show up alongside the girls Sammy'd mentioned on the way here, so them alongside the Alcremie Alice meant there'd be two party guests who you didn't know about—possibly more, if more guests decide they can show up after all.
"Eh, it's not a big loss," Sammy said with a shrug. "We have a lotta gals nights, one'll align with her busy schedule eventually. Let's focus on the now, though!" She then turned around, sticking her butt out as she opened up a large dresser. "Say, (Y/N), y'wanna help me pick out some clothes for tonight? You can just climb around on my bod instead if you'd like, I won't judge~"
It took you a moment to respond, staring in awe at her beautifully big posterior, but after clearing your head you knew what you wanted to do...