Step-Mom Tricked Into Voodoo Balloon Breast Expansion

You just caught your step-son jerking off to a friend of his and you've figured out why, it's because she has gotten several plastic surgeries and now competes for the largest breasts in the world and your step-son has an inflation fetish. She has breasts the size of beach balls now and he cannot help but be obsessed with her. To teach him a lesson, you just bought a "voodoo balloon" that is capable of inflating anyone you choose just by thinking about that person and blowing the balloon up. You announce how you are going to blow that whore friend of his' boobs up, since she always wanted to be the biggest anyway, until she explodes so your step-sons only obsession is you. You slowly blow the balloon up right in his face and taunt him at each size of the balloon, describing how big his friend is getting. Her over-sized tits blowing up like hot air balloons, her slender body puffing up, how worried she is about inflating in real time, she's turning into a blimp as the balloon gets huge. I mean, she always wanted to be the biggest and now you're helping her! You keep blowing the balloon up in his face and taunting him that she's running out of room, she's getting scared her balloon tits, now belly, ass, everywhere might get too big and explode. As the balloon gets as big as it can, you know that his friend must be so big and tight that she's about to burst and that's when you tell your step-son that when you pop the voodoo balloon, the other person fills up to the brink and then bursts too! She must be so desperate to get the air out of her. Then, you overfill the balloon and pop! You laugh and gloat that his blow up doll has just gotten too big and exploded and then you feel a sudden tightness in your breasts along with a hissing noise. Are they growing? You are blowing up like a balloon but how is it possible? Your step-son then tells you that he found your voodoo balloon and switched it with a fake and has given the real voodoo balloon to your friend with the huge tits, who has connected the balloon to an air tank and is filling it up rapidly. You struggle to contain your expanding breasts, begging him to stop pumping you up like a huge balloon, you don't want to burst like an overfilled one! Your breasts get huge and you start to run out of room. You continue to beg to stop blowing up and then your cheeks start to puff up as the air has no where to go! You cant move as a huge blimp, trying to contain your billowing form with your hands, saying "I'm too pumped up, I can't take any more, turn it off! As you run out of air, your cheeks fully puff out and you can only stand there like a huge balloon girl. Whimpering through your puffed out cheeks "NO!" and shaking your head as you're at your absolute limit, begging the inflation to stop but they don't stop, you puff up just a little bigger and POP!