Jackson Rathbone has a son with wife Sheila Hafsadi, but any other rumours of him getting some other woman pregnant are untrue.
Monroe Jackson Rathbone VI was born in 2012 to Jackson and his burlesque dancer girlfriend (at the time) Sheila. The couple went on to marry in 2013 in a low key ceremony.
They met when Jackson was touring with his band, 100 Monkeys, apparently it was love at first sight.
Jackson is, of course, famous mostly for his role as Jasper Hale in the Twilight movies. Nikki Reed, who plays Rosalie in the Twilight movies, is Monroe's godmother.
If I was that child, I would have to do the whole coloured contacts thing when I got older... there are people out there who would actually believe he is half vampire!