Your little step-sister is teasing you about how short you are. She says it's like you're actually getting smaller. She just recently had her growth spurt, and now you come up to about boob height on her. She laughs and tells you how ridiculous it is. You're supposed to be her BIG step-brother after all. She says that she feels like she's still growing and wonders how much taller she'll get than you. Before your eyes, she begins growing even more. She doesn't seem to pay much attention to how quickly she's growing. Your step-sister just keeps making fun of how short and puny you are. She bets ... Show more