Ughguh I wish I could empty my balls inside Tsukasa. He would be so disappointed once Rui stops cumming… He doesn't understand how can the human body be so weak, but Rui is hurting from cumming so much. His cock is flaccid even if Tsukasa tries to blow him again and again, becoming frustrated that he has to wait to taste Rui's cum again.

Maybe he gets to understand the pain once he gets pregnant and the dragon egg forms inside him. Now Tsukasa can barely walk without hurting and every movement comes with a little moan, a product of his discomfort. Still, he gets mad when he hears Rui let out the smallest chuckle seeing the dragon struggle so much to do the most basic things. It's ok, they love each other and Rui will do his best to help his god mate to manage this stupidly human task (pregnancy).