PLAY and making mess, is the nature of kids.
Last night, i pull out a mattress into the living room. My intention was to let my kids lay down in front of the TV and hopefully they will eventually sleep. My plan did not work. The mattress awoke their mischief, they took all the pillows they can find and stack it on the mattress. both of them took turned to dive on the stake of pillow. They were laughing and tickling each other.
Good to know that both brother and sister enjoyed each others company.
Kids really know how to have FUN.