A new twist on the old "Uncle Dad" joke.
Dad Learns That Unborn Twin 'Fathered' His Son
DNA tests show the man is, literally, his son's uncle.
Reminds me of a rerun of "2.5 Men" that was on last night. The housekeeper, Berta (who should totally get a spin-off, btw), made reference to her brother-in-law, Cousin Dewey.