Clark Kent was lying in his death bed with his wife Lois Lane beside him.
After some time, Lois said, “Darling, I have to confess something. Years ago, I had an affair with Superman. It was only one night, but I’ve regretted it ever since. I hope you can forgive me.”
“You don’t need to worry about that because,” Clark said as he took off his glasses, “I AM Superman! Even if you didn’t know it was me, in my eyes you were always faithful.”
“Oh thank God!” said Lois. “I can’t tell you what a weight that is off my chest.”
“Glad we cleared that up.” whispered Clark.
"That makes two of us.“ smiled Lois. "I guess this means you were Batman, too.”