HUNTB-369 - I Broke My Promise to My Sister: From 'Just the Tip' to Unstoppable Hardcore Thrusting

Desperate to lose my virginity, I begged my sister to let me 'just put it in.' She reluctantly agreed, but once I felt the real thing, I lost all control. My restraint snapped, and I turned into a sex-crazed machine, thrusting until I drove my sister into a state of pure, shattered ecstasy.