Levi Ackerman x Reader

You were a cadet in the Scouting Regiment. You were eating dinner with your friends, Eren Jaeger, Mikasa Ackerman, Mary Ackerman (OC), Armin Arlert, and Stephanie Jaeger (BFF's OC). "Hey, Mary, what's it like being the little sister of Captain Levi?" You asked Mary. "Well..it's hard. Fun but hard at the same time. We'...