What do we do in the morning?

Help out our Bro-bro

Waking up, I think over what must have happened with me making that rule. From what I can tell, because of the rule, Dipper and I got used to being around each other in the nude, even though my proportions are all new.

Smiling, I simply bask in the warmth of my bro-bro as I lay on his chest. Though as I do, I can't help but notice how small Dipper is. Like me before I made the Rule, Dipper is smaller than everyone our age. At least according to the rumor mill back home.

Gently, I pull myself away and walk off to the bathroom. Thinking it over, I pull the notebook from between my tits and stare at it.

"It's only fair. After all, I have the body I've always dreamed of. So should he." Flipping the book to the page I had the pen in, I write.
'New Rule: While asleep, Mason (Dipper) Pines body will quickly grow into the body of his dreams upon the completion of this rule.'

Nodding, I put down the pen and book before hopping in the shower. As I wash, I can't help but finally give in and explore my new body. I did some light groping of my tits yesterday. But now I gave them a full rundown. Exploring how I'd gone from an A, basically flat, to a pair that were so big, if I didn't know better, I'd swear they were bought.

Moving down I enjoyed the fact that my once slightly pudgy stomach was now smooth and tight. No abs, I didn't personally want them. Even if I could appreciate them on others.

Continuing downwards and I hum as my wet hair clings to my flared hips and I run my hands over them and down to my cake of an ass. Spanking it for good measure, I resist the urge to play with my folds, if only because I don't think anything there was changed.

Instead I run my hands over my new thighs and squeeze. Enjoying the slight give they have, as well as the muscle I feel underneath.

Shutting off the water and stepping out, I look in the mirror and smile before flashing a quick pose.
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Once I'm done posing for myself, I get dressed and head back to our room to wake Dipper up. Opening the door, I'm about to call out. Only to once again freeze at the sight in front of me.
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Looking up from the journal Dipper asks. "Shower open?" Nodding, I move aside as he grabs his clothes and head out.

"...damn~" I breathe out.