sakura x madara - she cannot breathe around him because shes so lovestruck this is canon
sasukeh x kabuto - they actually had *** on panel this one is canon kabuto put his snake dong in sasukeys chest cavity and hummed in his ear
naruto x obito - obito rubbed naruto's chest and abs seductively and gave him life there is potential here but nothing set in stone
tobirama x harem - all the shinobi hoes saw how OP strong and handsome he is and they are throwing there panties at him as we speak thats why he teleported sasky and left he had some "business" to "attend to"