Her believable character in the film earned her tons of praise.
Back in school years, she held positions of class president, and head cheerleader.
Can you imagine seeing her perfect and perky natural boobs riding your hard cock? Having hair there increases the sensation for the woman, thus making sex more rewarding for her so she is more likely to not only sex you on a more frequent basis, but also be more diligent in pleasing you to ensure a repeat performance.
Her ass is just the exact type needed to fit into her model-figured body.