Prompto likes to be feminine behind closed doors. He especially loves lingerie, light make-up and nail polish. Gladio is aware of Prompto's fetishes, but Prompto is too shy and ashamed to be feminine around him most times. Gladio wants Prompto to feel comfortable and happy in their relationship, so he slowly coaxes Prompto to wear frilly things around the apartment and starts to buy him small, feminine things to make him feel special. One night he presents to Prompto a bottle of nail polish and starts to paint his nails. Prompto loves both the attention and nailpolish. But he especially loves his big, strong Gladio quietly and gently painting his nails while making him feel beautiful.