You are aware that this line of thought is about 1950 years old, right? The story that Jesus was the bastard son of somebody has been around for about as long as the line that he was born of a virgin. It's always sounded absurd, which is why it has always been the first thing Christian apologists have had to defend, after the resurrection.

It was a mildly amusing variation, but I think it still falls in the category of Godzilla and a house. It was probably funny in the 2nd century, but it's gotten pretty lame by now.