More general 'increased beauty'

[midnite]

I'm looking for a story I read a little while ago I enjoyed. It was about a girl who had a friend who did phone sex for money. Her friend didn't do anything dirty just talked dirty. Though she decides to try it and gets one call. The call starts out fine enough the guy just wants her to answer him truthfully. She answers the questions he gives and what not but when she lies to make it seem hotter she changes so her lies are true physically and mentally