Seventeen-year-old Lily, the stepdaughter of a wealthy businessman, celebrates her birthday in a secluded mansion. With her parents away for the weekend, she indulges in cupcakes and tequila shots while chatting with her stepbrother, Tyler. However, Tyler has a secret desire to have his way with her, and the idea of giving Lily a birthday gift she'll never forget crosses his mind. He excuses himself to the bathroom and unlocks a hidden door that leads to his personal collection of sex toys. He selects a dildo shaped like a dick and a gag, returns to the living room, and presents his sibling with the gift. Shocked and intrigued, Lily agrees to try it out under the condition that Tyler participates too. He leans in and whispers in her ear, promising to make her the happiest girl on earth. They retreat to the master bedroom, where Tyler slides the gag into her mouth, and Lily dazedly lets Tyler guide her along each exquisite encounter. He ties her wrists to the bed, lifts her legs to her chest, and drives the massive fake dick into her pussy. The force of the thrust sends shockwaves through her body, choking her with pleasure. She screams and squeals through the gag, feeling every single inch of Tyler's virtual manhood filling her up. Tyler takes her to the next level, licking and sucking her nubile center while teasing her with his tongue. Lily's passionate moans fill the room, reaching a crescendo as Tyler shoves his fake cock deeper into her hole. She moves her hips rhythmically, riding Tyler's toy to ultimate ecstasy. She convulses, unable to contain the torrent of orgasmic energy washing over her. Tyler holds her close, rubbing her back as they both breathe heavy. They exchange a satisfied smile, knowing that they just shared a secret that can only be experienced in the most intimate of love's games. They rip the gag off of Lily's mouth, and she gasps for air, her eyes widening in amazement. Tyler takes a last, indulgent look at Lily's steaming body and pulls out, leaving a final dollop of fake cum lingering on her shuddering pussy.