You decide to try the mask on at your dorm, so you walk your dorm. As you're walking, the urge to put on the mask is getting stronger and stronger as if the mask is telling you to put it on your face. When you reach your room, you close and lock the door. You look at the glowing green mask and remember the store clerk telling that it would bring you more trouble... and more pleasure. You feel so curious and decided to put it on. When the mask is near to your face, you feel there is some sort of force pulling your face right into the mask. As the mask and your face make contact, it starts to spread the tendrils and cover your whole face from the front to the back, and you start to panic, trying to get it off. "A-Arrgghhh What the hell is this?!?! What is happening!!?" You scream. Then the transformation starts. Power starts flowing through your vein, your bloodstream, throughout your body. There are tingling sensations everywhere and you feel your body changing, getting bigger. Your chest, your arms, your shoulders, your biceps are expanding. Your abs is growing into a full 6 abs. After that your lower body is also changing. Leg muscle and both of your thighs are getting better, and there is a twitch in your shorts at the crotch. You feel pleasure in that area as more and more blood is flowing there. Your dick is erecting, straining the fabrics of your speedo. Your ass is also getting enlarged to full round ass. After the change, you walk to the mirror and check out yourself. You notice you are a few inches taller, got a bara-esque body, a big buldge along with a round nice ass in the speedo. "Ohhh yeahh, I feel so good in this new body." You muttered.