Slumber Party Games

Hi my name is my nickname of my name. Anewayz.... I`m having a party on sat. The 15th of nov.- the 16th of november for 4 gurls in total, me and my 3 friends i`m turning 13 and i`ll be the last of my friends so we are all 13 and i have no idea what to do!! i have a spa and the pool isn`t heated ( the spa and pool are public i live in a townhouse! ) anewayz i have no ideas and i want to watch a movie. Its starts at 5:00 pm on Sat. - 2:30-3:00 pm on sun. Can someone help me out wtih a plan? you can e-mail me at Princes_awsome@yahoo.com please e-mail me before firday at 7:00pm PST