Is This Normal or Am I Being Gross?

Jordan
I am thirteen and I am straight. 
Ok so my friends and I all went to the pool together, and one friend was carrying me and my (absolute best) friend on each hip. She stopped moving for a bit. The friend on the other hip readjusted, and now her foot was holding me and my womanhood up. I guess she was cold, so she started to move and wiggle her toes. I felt AMAZING! It was like she was doing on purpose to get a reaction. Which she almost got because it felt so good that I almost moaned. Luckily, before I did, my other friends dunked all three of us. Now, I love my best friend, but let me make this clear I am not IN love with her. Does this make me a freak? Am I not straight? Am I even normal because I am really confused. 
PLEASE HELP! PLEASE NO HATE BECAUSE I JUST SPILLED MY GUTS AND I AM PRETTY VULNERABLE!