Surely its missing a paragraph:
Billy and Cait moaned in chorus, her legs locked around his waist and her spine arched. "Goddamn!" hissed Cait through gritted teeth.
Billy could not hold on any longer. He pumped his hips faster. His bolt of lightning was about to explode.
"Uhhhh....SHAZAM! SHAZAM! SHAZAM!" yelled Billy, sweat dripping from his brow.
Thunder boomed inside the room, causing the windows to shatter. Lightning ripped through Cait's cervix, igniting every pleasure nerve in her body. Her inner thigh muscles spasmed.
"Holy moley!" said Billy.
"Ahem," a ghostly cough filled the room, in a voice entirely too familiar to Billy.
"Uh-oh," said Billy.
Cait sat up in bed. "What...who was that, Billy?"
"If you think I gave you these powers so you could give your girlfriend a multiple ejaculatory orgasm, you'd better think again young man," said the disembodied voice.
"Its the wizard Shazam," said Billy. "Dirty old perv."
