A Bit Of A Stretch

Nina peeled on a baby-blue leotard that hugged every inch of her tight body. Penny walked in, stopped dead. Her mouth dried, heat flashing between her thighs. The thin fabric stretched over small breasts and gripped Nina's firm ass so tight it left nothing to imagination. "Feels good," Nina said, twisting in the mirror. "Can you check it won't rip when I stretch?" Penny's fingers twitched. She almost said no, almost walked away, but the word that left her mouth was, "Sure." They sank to the mat. Penny braced Nina's thigh, pushed her leg up. The leotard's crotch seam slid, pulling tight across Nina's slit, outlining her lips like paint. Sweat prickled Penny's palms. She angled the other leg wider, and the fabric slipped between Nina's cheeks, riding up deep. Penny's breath went ragged. Nina caught her eye in the mirror—saw the flush, the parted lips, the fingers that lingered too long on bare skin. Nina smirked. Without asking she dropped into a split, rolling her hips forward so her cunt pressed against the floor. The leotard turned transparent with wetness. Penny's grip trembled. "Like this?" Nina breathed, then arched back until her shoulders touched the mat, knees wide, everything on show. The scent of her arousal hit the air, sweet and sharp. Penny's restraint cracked. She dropped to her knees, shoved two fingers under the leotard leg-hole, finding Nina already soaked and hot. The girl's smirk deepened, hips rolling into the thrust, cunt gripping greedy around each pump. Penny tore the thin straps down, freeing small tits, sucking hard on a stiff nipple while her thumb circled Nina's swollen clit. Nina moaned, loud, shameless, legs wrapping Penny's waist. They tumbled together across the mat—sweat, spit, slick fingers, fevered mouths. Penny buried her face between Nina's spread thighs, licking through the stretched fabric until she yanked it aside and tongued deep inside her stepdaughter's dripping cunt. Nina clawed her hair, heels digging into her back, riding every stroke until her body shook hard and wet against Penny's mouth. They fucked like they needed it—raw, frantic, no turning back. Every thrust of fingers or grind of hips chased more heat, more need, until they both came gasping and shaking in a tangle of limbs and torn spandex.