Well, Camilla did have two children with her first husband after she and Charles began dating. The oldest is named Tom and in recorded conversations with Charles, Camilla brought up his birthday and reminded Charles of it.

That would be quite the intrigue if a DNA test showed he was the offspring of Charles and not Camilla's first husband.

Update: Turns out Camilla named Charles as the God parent to her son Tom. You'd think her husband might feel slighted by that...

Well, Camilla did have two children with her first husband after she and Charles began dating. The oldest is named Tom and in recorded conversations with Charles, Camilla brought up his birthday and reminded Charles of it.

That would be quite the intrigue if a DNA test showed he was the offspring of Charles and not Camilla's first husband.