Breast Expansion Turns Sis Into BIMBO

You walk passed your step-sisters room to see her crying , you ask whats wrong , she says that she didn't make cheer captain ,AND her friend said "well of course not , FLAT chested girls NEVER do! So you offer her these NEW pills you are pushing , and she is so desperate she tries them , not just 1 but 5 x. Her tits grow and grow until they are size Z, and the MASSIVE breasts aren't the only effect, she starts to grow more BRAINLESS as they grow , begging for her step-brothers cock!