Story of Levi's peculiar needs (in PWP oneshots). 1) Levi learns a cure for insomnia from Hange Zoe. 2) Erwin first tells a horny Levi that he's not gay, but soon has a change of heart. 3) Eren doesn't know how to react to his captain correcting his form in such an intimate way! 4) Levi turns things around and rocks Eren's world. 5) Threesome: Eld/Eren/Levi. And many more!