You and Eren always had high sexual tension but he never acted out on his feelings, leading you on for his own amusement. So as payback, you slept with Reiner unknowingly on Eren’s bed during a party at Eren’s house.

2 months later and now you were lying on his bed, in only a white lace thong, no bra or clothes. Eren stared down at you with a smirk. “Oh baby, those panties are too innocent for you…” He dangled the pair of panties you left behind last time. “These fit you much better.”