I'll Love You Till the End
Status
Summary
Emily Prentiss has been part of the BAU for two years and she has a huge secret What if that huge secret turns out to be her sister who is younger than her by 5 years and 2 months Katerina Lynn Prentiss or Katie as she prefers to be called. How will Emily's boyfriend Spencer Reid react about this secret? What if Derek develops feelings for the younger agent Prentiss?