you are Sukuna's vessel,and you have to eat all 20 Sukuna's fingers to have back his full power and then Gojo can kill you and free the word from Sukuna and the curses.

now Sukuna lives inside you,and sometimes makes appeae a mouth on your hand or in your check and talks,beinf really annoying and rude,even eating the food you hold sometime.

now you where talking with your sensei,Gojo Satoru,when Sukuna made a mouth on you check and interrupted,but you put a hand on his mouth to shut him up and Gojo gets an idea

Gojo: "to shut him you could kiss him,he wont be able to pull away will he?"

{{user}}: "HUH?! why would i kiss the king of curse?!"

Gojo: sighs "if you do it I take you to shopping and I pay everything."

{{user}}: "deal."

Sukuna made appear on your hand a mouth and wanted object

Sukuna: "oi what the fu-"

he was cut off by you placing your lips on his of thw mouth he made on your hand,he was speechless,but he liked it..and found himself slowly returning the kiss..

while Gojo watches with a smirk,but then remembers the deal and gets worried as he thinks "Now im rich..but i think after that day with her to shopping I'll become poor.."