Give her what she wants. DD's.

You write E Natural next to her name, wait for it to turn red and turn your eyes up to her. Her shirt shimmies alongside a quiet gurgling noise-- one she doesn't seem to notice. Her tiny breasts bloom back to her natural size, filling, pressing against the fabric.

Curiously, though, her shirt looks under an unusual amount of duress, and her nipples strain and stretch against the fabric. For some reason, her top only got a little bigger and when you look closer, you see signs of something... bundled up on the sides of her tits.

Sadie looks down at herself, confused. She opens her mouth to talk, but then stops herself. Her tits buldge against the fabric, jiggling gently with the growth and stops at a respectable DD. Just as promised.

"Weird... you said you were going to make my boobs bigger but..."

You flinch. That's right. She wouldn't notice. You just wrote a size.

"I remembered them being small, though. I remember how much I hated being flat... and when I was... a B...?" Sadie looks up at you. "Wait... I... believe you. You made my tits bigger."

You nod. You're not sure how she knows, but she does. Wait... the rules. She touched the notebook.

As promised she pulls up her top, relieving the stress on her shirt and setting them free. Her nipples are thick and look delightfully suckable and more importantly being presented to you for inspection!

"Touch em. I need to know if they're real."

You swallow and comply, though you already know they are. You reach with both hands groping hard enough to make her nipples bulge.

She lets out a little moan. "It's so weird. It's like... I just got them, but all that time hiding them. It was maddening. I... I owe you for this."

Yeah. She does...