In the quiet of their parents' home, siblings Lily and Lucas find themselves drawn together by a force they can't resist. Lily, a devout Catholic, struggles with her feelings for her brother, feelings that are anything but sisterly. Lucas, a budding artist, finds himself inspired by Lily's beauty, his sketches growing more and more explicit as his feelings for her intensify. One evening, as Lily prays in her room, Lucas enters, his eyes filled with a longing that mirrors her own. He steps closer, his hand reaching out to touch her cheek, his thumb brushing against her lips. Lily's breath hitches, her heart pounding in her chest as she leans into his touch. The room fills with the scent of their shared desire, a heady mix of sweat and longing that threatens to consume them both.