Santa's Sexy Helper

Avery and Peyton had been close friends since kindergarten, so close they often kissed on the cheek and held hands. Nothing sexual merely a comfortable friendship. Eventually the chaste kisses and hand holding moved on to cuddling and kissing when enjoying a shared experience like 4th of July Fireworks or birthdays. In most cases, Avery allowed their kissing to continue for a while and then ended it abruptly.
Peyton never complained, grateful for the intimacy she was willing to share and was patient with her, determined to wait until she was prepared to go further once they were of age. Patient, that is, until the night after their shared eighteenth birthday party. Peyton was sleeping over at Avery's house, on a mattress beside her bed. Peyton felt Avery slip in beside her and they cuddled. When Peyton made clear her intensions, Avery was repelled by her overture.
This so devasted Peyton she went into a deep depression, thinking life wasn't worth living. But one night, when things were the darkest, a mysterious woman entered Peyton's room and revealed an unbelievable story about her mission, who she was and why she was there to help Peyton. Ignoring her depression, Peyton recovered from her shock of the woman's revelation, thankfully she calmed down and listened.