thinkin bout how sukuna left an influence on yuuji that starts perking up when suku reincarnates.

Shotakuna getting nipped and giggling, pushing Yuuji's face away only to have his fingers licked and bit gently and Yuuji jokes about "eating him."

and Yuuji can't find it in himself to stop, licking Shotakuna's neck, always craving for a taste, the first time he breaks skin, he suckles the blood before it could even trickle down and from that moment, Shotakuna is littered with love bites, sometimes bandaged up bloody