Super, thanks for asking

David didn’t dream of conquering the world or becoming an evil billionaire. He just wanted to fuck Supergirl. His dream came true when, in quick succession, he gained mind control powers and had a chance meeting with Supergirl.
At first he made her addicted to his cock. She would fly back to his apartment after fighting crime so he could enjoy her perfect body and her perfect kryptonian cunt. But, being super, her stamina was much higher than his and making her addicted meant she could never be satisfied because he couldn’t match her.
But being with her gave him time to modify his commands. He made it so she came with him. The first time he nearly broke his cock with her super orgasm. Afterwards he made her tone it down, making it so that his cock was her kryptonite, making her as weak as a normal woman and with orgasms that wouldn’t destroy whole city blocks.
His favorite thing to do was to drop her tights and plunge into her super pussy while making her beg for it and say all manner of dirty things she would never say in public because of her squeaky clean image. She was a slut for him and no one realized because he didn’t appear to be doing anything evil. The other superheros just thought she was in love with him for some reason.
Occasionally he would use his mind control powers to send her for real Chinese food, or fly him up into the sky, or just walk with him through the city while the photographers snapped their photos of Supergirl’s lover.
He figured he wasn’t really hurting anyone. He rationalized his mind control away by telling himself he was making her enjoy it so she wasn’t doing anything she didn’t want to do. The rest was details.