www sure!!!!
+ shota eichi is like. a brat. early tori kind of brat but notably more manipulative (iirc this was actually canon but i can't remember which story? so i'll leave it at that)
+ and shota wataru in my mind is really bubbly and talented. probably a people pleaser too oh he has ISSUES
the obvious way this will go is => bratty shota eichi manipulates bubbly people pleaser shota wataru into fucking him. toxic codepency shota sex everyday !! hell maybe throw some mobs in there and have them both fucked while holding each others hands