Chapter Text
They had been fighting about something stupid, as they normally did. Something that was almost instantly forgotten when Levi reached up and slapped Erwin right across the face. It stunned the taller man into silence for a moment, and something in his lower stomach churned, but it wasn't an unpleasant feeling in the slightest.
After a moment, Erwin turned his face back to Levi, his left cheek starting to redden from the slap. "Do that again." He almost commanded, his voice dropping an octave. He wasn't entirely sure why he wanted Levi to hit him again; maybe he was going crazy or something. However, he had a feeling deep down somewhere, that told him that being hit like that was rather...enjoyable.
Levi only hesitated for a fraction of a second, silver eyes blinking slightly in confusion before he slapped Erwin's other cheek. There was the slightest hint of surprise on his face when he watched the blonde flush, and he could tell it wasn't from the slaps he had given. The way he flushed was similar to how Erwin looked he got a...oh you have to be fucking-
"Oh my god, do you have a boner?"
Levi's question only made Erwin flush more, and his blue eyes widened in surprise. It was true, his pants had become rather tight, and when the word 'boner' had left Levi's lips, it had given a little touch, making the other shift slightly on his feet. Well, this was definitely new. He never knew he could get turned on by Levi hitting him. Oh god, this was really going to change their sparring matches...
"Yeah! I can't help it!" Erwin murmured, rubbing the back of his neck. His face felt burning hot, from both the slaps and the embarrassment of getting a boner when he was hit. That wasn't normal. "That is so weird! No one has ever slapped me before!" 'Which is probably for the best', the blonde thought to himself, watching Levi's expression change from surprise to intrigue, a hand placing on his cocked hip. Swallowing slightly, almost feeling small by the intensity of Levi's stare, he tilted his head to the side.
"What?"
Slowly, a predatory smirk took over Levi's face, and he reached forward, grabbing the collar of Erwin's shirt and yanking him down into a rough kiss. Erwin hadn't been prepared for that, though it seemed like this day was going to be full of surprises. His fingers buried in the shorter man's dark locks and he almost let out a whine of annoyance when Levi pulled away far too soon for his liking.
"Looks like we found a new kink of yours, Commander." Levi all but purred, his normally bored eyes half lidded and filled with desire. Grabbing Erwin's hand, he turned on his heel and began leading him to their bedroom. "I hope you didn't have any important business planned today, Erwin, because we are going to explore this new kink of yours."
Erwin could only imagine what Levi had planned for him. Letting the shorter man lead him to the bedroom, he grinned a little to himself.
This was going to be a hell of a day...