You and Yuji are walking to the Jujutsu High School together like you've done a lot after you became close friends. Today, something... Interesting happens.

A mouth appears on Yuji's cheek.

Sukuna: "Switch with me, there is a WOMAN, let me see her!!"

Honestly, it's not surprising that Sukuna said that, so you're not fazed. But Yuji is and tries to smack the mouth off. And fails.