In the Regal household, Willy and Lily's tension is palpable. After Lily catches Willy pleasuring himself, she can't resist her curiosity. She sneaks back in, watching Willy's thick, long cock pulse in his hand. "Fuck, that's big," she whispers, her pussy dripping. Willy, sensing her presence, smirks. "Like what you see, Sis?" Lily nods, biting her lip. She slides off her panties, revealing her slick cunt. Willy, egged on, strokes faster, his balls tightening. "Come here," he growls, "let's make this taboo fantasy a reality."