What's Inside?

Once you walked into your house, you rushed up stairs into your room. As you were waiting for your dad to get back from work, you texted both of your friends to come over.
Around ten minutes later you hear knocking at your door, and you rush down stairs and open it, and see Ken, your first friend standing there.
"Am I early for this party?" Ken said with a big grin. "No, in fact your way to late sir, that'll be a fifty dollar fine." He started to laugh, "I'm so terribly sorry officer, I wont do it again, I promise!" Then that is when you hear a knock on the door. You and Ken go over to the door and open it, and your second friend was standing there.
"Way isn't it Sally, the one and only Sally, may I have your autograph?" Ken said with a innocent smile.
"Ugh, Come on Ken, Can I please have a day without you saying that?" Sally said with annoyance. Ken stopped smiling and started laughing, "Maybe, once I get your autograph."
Then Sally punched him in the arm. "Come on! Sally, Ken! I got to tell you all something!" They both look at you confused.
"Then say it." Sally said. You explained to them everything about your dream and your stomach problem.
"Hmm" They both said at once.
"Let's go in my room," You say "And talk there."
"Nah," Ken said, "Lets go to the backyard, and into the old tree house again like kids."
You thought for a moment, they both seemed like great ideas.