Tabbyanne's siblings, trapped in their stuffy attic hideaway, can't ignore the electric charge between them. The sister, a innocent-looking minx, tentatively touches her brother's arm, sending shivers down his spine. He responds, cupping her small, firm breasts, making her gasp. They explore each other's bodies, their first kisses clumsy yet exhilarating. He pushes her against the wall, lifting her leg to expose her virgin pussy, before sliding inside her. She winces at the initial pain, but soon loses herself in the pleasure, their bodies moving in sync, their first time a secret, shameful delight.