"You've lost two more kilos!" Kakashi exclaimed, writing down the number offered by the scale in a notebook. "Really? But I didn't do any exercise yesterday..." Iruka thought aloud. Kakashi smiled predatorily and Iruka, recalling the pain in his hips and his ass a cause of which he had avoided doing any kind of physical activity, had de decency to blush. Kakashi slided an arm around his lover's waist to attract him to his body and whispered in Iruka's ear: "It seems we have finally found your ideal sport, Iruka." "Huh?!" _______ *Authoress' note: This is the translation of my own fanfic "Training Day", which is written in Spanish. I hope you enjoy this fic of mine, and, as always, if there are any errors, make me know so I could improve!