For those who had a big problem about the age gap, then you shouldnt finished reading it. The important thing here was Sukuna was still on Itadori's body and using its body to make something with Megumi. That still sounds hot right? Since Yuji's body was so hot and both evil (Sukuna) and good wild Itadori was doing it with Megumi. You should react if Sukuna make it with Megumi with an old face man. Their body only matters here and what we want.
For those who had a big problem about the age gap, then you shouldnt finished reading it. The important thing here was Sukuna was still on Itadori's body and using its body to make something with Megumi. That still sounds hot right? Since Yuji's body was so hot and both evil (Sukuna) and good wild Itadori was doing it with Megumi. You should react if Sukuna make it with Megumi with an old face man. Their body only matters here and what we want.
(≧∀≦)