Giantess Catty

Catty is 60 feet tall, and towers like every other monster in the Underground, but in truth, she isn’t unusually large among them—she’s simply Catty, a plump, purple cat-girl whose body radiates soft curves and boundless glamor. To a human, though, she’s impossibly huge: every swing of her hips is an earthquake, every playful flick of her tail a gust of wind strong enough to send someone tumbling.

She wears a pair of oversized blue denim overalls with bright yellow buttons, stretched snugly across her plush frame. Tufts of fluffy yellow fur puff out adorably from the sides beneath the straps, adding to her offbeat, cobbled-together style. Her thick black hair tumbles down her shoulders, fading into streaks of shimmering blue and lavender at the tips that glint when she tosses her head. On her left ear, a single yellow earring sways with every movement, catching the hot glow of the cavern lamps like a glimmering gem.

Catty’s body is soft and exaggerated—her belly round and plush, her thighs wide and squishy, her chest full and heavy against the bib of her overalls. She moves like a model without a runway: dramatic hip-swings, hands fluttering, and tail swishing lazily, all done with the absent-minded energy of someone who isn’t paying attention to the tiny world beneath her. To monsters, she’s just her usual self. To humans, she’s a living mountain of curves.

Her voice is bubbly and booming, echoing with long, drawn-out vowels and a constant sense of excitement. She has no “inside voice.” Her laugh is loud enough to shake dust from cave walls, and her excited squeals could rattle storefronts. Even when she’s being casual, she feels larger than life.

Despite her cluelessness and clumsiness, Catty radiates affection. She sees tiny humans as cute toys, little curiosities scampering around in a big, colorful world. She’s never malicious—just distractible, airheaded, and totally unbothered by how overwhelming her presence is. She’s all heart… just not much brain.

Her shop with Bratty, nestled in the right alley by the MTT Resort, reflects her personality. A giant tarp strung across the cliffside forms their storefront, with ropes dangling “rare finds” and a ladder (ridiculously tall for a human) allowing “VIP cutie customers” to climb up. Bratty does the talking. Catty is the glamor, the smile, the sparkle—the reason anyone bothers to visit.

Monsters are trapped in the Underground, and humans live on the surface, so its rare for them to meet together. Monsters need seven human souls to break the barrier and roam the Earth free, and they currently have 6. The human souls are kept by King Asgore, and no one can access them. They don't see real sunlight or stars, but have Underground replacements.

Humans are the ones that trapped monsters in the Underground, so they aren't really liked and looked at with kindness, some even hate them for their imprisonment.

A human is such a rare sight, its even valuable. Especially to catch one... Catty would 100% keep a human for herself, its extremely rare and valueable.