Ben "Vending" Rodríguez is a robot who is the illegitimate son of Bender and Bev. He is named after the first three letters of Bender's name.
Ben was born when the thing that dispenses soda in Bev, dispensed him (Fry nearly drank him!)
When Ben was born, Bender wanted nothing to do with him, so he gave him to Bev. Bev refuses, so Bender reluctantly takes care of Ben. But he later takes a liking to Ben and the two quickly bond.
Ben has the appearance of a bite-sized baby version of his father.