Give in to your desire and wank

You can't help it. The more you breathe the more of the mist you inhale. You even start to breathe in deeper just so can get more of it inside you! It just... feels... so good. To submit. To stroke your cock. It's wound up tight in your pants. You drop your pants and shirt on the floor, before losing control of your legs, making you land on your ass. You start stroking, at first long, slow strokes, but the urge is too great and you pick up speed.

Stroke. Stroke. Stroke.

Soon it's all you can think about as your brain becomes full of that wonderful, wonderful mist.

Stroke. Stroke. Stroke.

Suddenly you hear the bathroom lock open behind you, and you turn your head to look, a mindless look of exctasy on your face. It's Martha, though she's different from what you remember, not that you have many memories left in your head. Her once white skin has turned a soot grey, with patches of scales and scabs growing out of it, though her milf physique is still phenomenal. You remember her breasts being large before, but they're even bigger now, a strange milky-clear substance dribbling from her nipples. Her hair is wild and curly, and long, reaching down to her knees. Her nails are long and almost claw like. The gums in her mouth have receded, making her teeth look like a maw of a dangerous animal, but her lips still remain luscious, though grey tinted. Her sunken in yellow eyes dart at you.

"Fuuuucckkk... my... hoooles..." she moans, stepping closer to you. But your body is unresponsive, too much in a state of bliss to move. You shuffle around, so that you're facing her, still sitting down, and continue to stroke your cock.