Shit, did I really forget to tell him? Now that he thought about it when he was fifteen he thought Mephisto was the most underhanded demon he could ever meet. But three years, two months short of four years, Rin and Yukio would realize Mephisto wasn’t bad. Annoying, mysterious, and even eccentric at times, hell yes. Ironically enough Mephisto was more open with his plans with strictly Rin, of course. “About two months, officially. Though I have had feelings for him for almost two and a half years.” Perhaps he should leave out that both himself and even the older Yukio both went through times of heat. "As for why? I dunno? I found him attractive. Seems since Satan was defeated I felt myself drawn to him."
Yukio still didn’t understand. As intelligent as he was, it was simply inconceivable that his brother could ever have genuine feelings for a demon king like Mephisto—and wasn’t Rin supposed to be heterosexual, anyway? That wasn’t even surprising compared to who his partner was, however, so the half-breed didn’t dwell on it for long.
"That’s… that’s odd." He managed in response to Rin’s last statement, reaching up to adjust his glasses. Thankfully, Yukio himself hadn’t ever felt any attraction towards the King of Time.
"But, uh, Nii-san—you do realize you’re related to him, right? Isn’t it a little weird?"