Sasuke should have been a female.

Picture this: Following the intense and climactic final battle, with blood, mud, and sweat covering them, FemSasuke gradually regains consciousness. She finds herself lying on the ground beside Naruto battling her own feelings, in a moment of vulnerability. Suddenly she kiss him after a long pause staring at each other, and they end up fucking right there, consummating their love and covering each other with their juices.