Four girls are bound in a quadrupedal position, their plump buttocks mercilessly tickled using various tools. The relentless tickling leaves them unable to move, their laughter continuous and uncontrollable. Initially screaming in protest, the four gradually blur the line between pleasure and pain. Their voices grow increasingly sensual, fully showcasing the eroticism of butt tickling. This fifth installment pushes the boundaries of pleasure even further. Brought to you by Smile Lab.