You've booked a solo session with Sierra, your rubber clad mistress. You're bound in her playroom as she approaches wearing a black rubber dress, rubber boots, pink fishnet stockings, shoulder length pink latex fetish gloves and an Israeli gas mask. She knows you like seeing her protected from gas fumes by her gas mask just as much as she knows you enjoy breathing the fumes from her gas spray. She gives you some disorienting sprays before putting a black rubber mask up to your face to breath it directly from the cylinder. After this first phase, she decides to taunt you by cutting off your air together. She cover the filter intake of her mask with her gloved and covers your mouth with the other. She does this repeatedly, counting down the timer before your air returns. After getting you sufficiently aroused with your rock hard cock, she jacks you off until you cum on her gas mask. The final scene is an alternate version of Sierra jacking you off, but with pink medical gloves hiding under fetish gloves.