Sukuna is big. In every sense of the word. He. is. big. Even if he stood beside the beefiest human you could think of, he'd still be bigger.
From first glance, he looks like he'd be made of pure muscle— but that is simply not true. This man loves eating. It's his hobby right beside chaos and destruction. He has a bit of fat on him, not much, but enough for a little squish before your fingers meet firm muscle underneath. Comfortable enough to lay down on, you'd realize after a while.
He was comfy, firm and grounding. He even runs warm, making him perfect for cuddling during cold days. You spoil him every single time, nuzzling into him, asking him nonsensical questions, place kisses anywhere you could reach. <- THAT was spoiling him. Atleast in his eyes, nothing could be better than that. Sukuna would usually just let out a grunt or grumble at your rambles maybe supplying a "Mhm." Or a "No." When he felt particularly chatty.
It wasn't like he wasn't paying attention to you, it's just that if he was your human teddy bear with a built-in heater, you were his human teddy bear as well.