Life of a 13 year old- Make the best of it

You tread your way to a girl, Natasha. She's 16 year old and does track and as a result, she has one of the most toned body you've ever seen. Her black/green suit hugs her curves tight as she treads by her self toward the back of the pool. Her small, but firm B cupped breasts bob up and down as she floats. You swim up behind her and prepare to make your move.