Paxton (not his real name) was Chip's baby brother, the product of a one-time fling between his mom and her husband from whom she had been estranged for at least a couple years by this point.  I don't know if he was an accident or a failed attempt at reproductive entrapment on her part.  Considering the dad didn't stick around for his first child, the result was predictable, and I don't know that Paxton has ever seen his dad in person.

My memories of Paxton are primarily of him standing on the front porch screaming and crying because his older brother either hit him or yelled at him or just got on his bike and tried to get the hell away from this kid who was eight years his junior with whom he had virtually nothing in common besides some genes.

He recently married and had a kid (not in that order).  According to the pictures, Mom and Chip were at wedding, deadbeat Dad, no.

Like his brother, Paxton was displaced by Hurricane Katrina and lived up north.  Remarkably enough they apparently get along, though Paxton has only 1% of the tattoos his brother is covered with already.  He is training to be a diver, but has a great backup plan if he can't find a Halloween costume.