Hehehehe HELLO!!!
Hnnnnnnnnnnn It's always good when Sukuna gets his ass eaten until he's a sobbing, crying mess. Hips grinding into the sheets, trying to get away from that mouth, but the friction of the sheets against his already spent cock is making everything worse so he's involuntarily bucking back only to meet that mouth again-
GOD You just know he'd be begging them to stop, it's too much, he's got nothing left to give but his partner (lets be real, you know I'm saying this is Megumi because I love them too much) is telling Sukuna he can do one more. Just one more. One more and he'll let Sukuna rest (one turns into two into three into four etc until Sukuna's a limp, pliant mess who can't even lift his head off the sheets. Just a drooling, whining, whimpering mess)
YES
SUKUNA WOULD LOVE CBT SO MUCH
AND MEGUMI
HNNNNNNNNN
He'd be so hesitant at first because he knows some people say they like it but only a gentle version of it but Sukuna? Oh he's asking for more until Megumi stops holding back and suddenly he's slapping Sukuna's cock like he wants to break it. Clamping his balls so tight they're changing colour, slapping them so hard it makes Sukuna cry. Grinding his dick beneath his shoe.
Oh Sukuna loves it all and afterwards, when Megumi's wiping the tears away, checking that he's not hurt, Sukuna's asking him when they can do it all again (maybe even giving him pointers on what else Megumi could do to him because "I'm not a princess, I don't break that easy." Which Megumi takes as a challenge hehe)