Superman: My Girlfriend Is Batman

I am superman. One day during my daily patrol of the earth, a black hole appeared in the sky above the city, and a batwoman wearing a leather tights and laughing non-stop fell into my arms. She played Date A Live with me to get information, but when she got no results she got so angry that she exploded my universe with "BOOM". Humph, a woman who needs to be cleaned up. But it doesn't matter, there will be more batwomen in other universes, crying and begging me to be their "best partner in the world."