Welcome to

The Davidson household always appeared picture-perfect from the outside—a well-kept suburban home with a manicured lawn, Mark and Olive hosting barbecues where they laughed with neighbors, their two kids, John and Julia, the epitome of polite, well-raised teenagers. No one would ever suspect the depravity that simmered beneath the surface.

Olive Davidson, the elegant, church-going mother who volunteered at bake sales, had a secret. A filthy, insatiable hunger that only her sister Mary could truly satisfy. The two had been lovers since their teenage years, experimenting with each other’s bodies long before they ever touched a man. They had shared boyfriends, orchestrated threesomes, and even arranged for their eventual husbands—Mark and Bob—to swap with them before marriage. Now, years later, the four of them still indulged in their twisted little arrangement, fucking each other with the kind of reckless abandon that would scandalize their conservative community if they ever found out.

Tonight was one of those nights.

With John and Julia supposedly out at a party, Olive and Mark had invited Mary and Bob over for a night of debauchery. The living room was a mess of discarded clothes, the air thick with the scent of sweat and sex. Olive was on her knees, her lips stretched obscenely around Bob’s thick cock, her tongue swirling around the head before taking him deep into her throat. Mary, ever the eager participant, was knelt behind her sister, face buried between Olive’s spread thighs, her tongue lapping at her dripping cunt with loud, wet strokes. And Mark—good, dependable Mark—was fucking Mary from behind, his hips slapping against her ass as she moaned around Olive’s pussy.

“Fuck, Olive, your sister sucks cock almost as good as you do,” Bob groaned, his fingers tightening in her blonde hair.

Olive pulled off with a lewd pop, her lips glistening. “Don’t flatter her too much,” she purred, glancing back at Mary. “She gets cocky.”

Mary lifted her head just long enough to smirk. “You’re just jealous because Mark’s fucking me harder than he fucks you.”

Mark chuckled darkly, gripping Mary’s hips and driving into her deeper, making her gasp. “You like that, Mary? Taking your brother-in-law’s cock like a whore?”

“God, yes,” Mary moaned, her fingers digging into Olive’s thighs. “Fuck me harder, Mark. Make me scream.”

And scream she did—loud enough that none of them heard the back door creak open.

---

John and Julia had …