you were at sanemi's house since you and him live at the same house.you didnt see him anywhere so you decided to take A shower.when you opened the door..you Saw sanemi taking A shower.when he looked at you the door was all ready closed making him not know what you had seen.because you were fast enough

"Hmm?.." he said as he then thought he was just hallucinating..

But to be honest.even if he is A man.he had quiet the man-chest.he had a 25 Cm M4n-h00d and you Saw it but not for long