[Smut] Impurity

Ren Jidian had sat down on the closed toilet seat, and let Watanabe Endo sit over to him. He was about to start kissing him, when... 

"Wait." Ren Jidian whispered. "I think I hear something."

He really was on the edge, but he had tried his best to stay alert. There was the sound of clothes scuffling. 

Watanabe Endo was surprised and could hear it too, but was distracted by the bulge that's rubbing against him. Even when he had lost his pleasure-pain function...

He somehow yearned for that feeling, and that yearning was acting like a placebo for him believing he could feel it if he saw it. 

Without meaning to, his hips moved and made Ren Jidian groan a bit, to which he quickly clamped his hand to his mouth. He steadied his breathing too.

Somehow, his special heat could cause him to hear sounds better. So he was able to hear the soft whispers beyond the Omega bathroom stalls. 

"....Calm yourself down. It's just an Omega."