Gunter is one out of a group of brothers in the Pinkerton family. His older brother is Lance Pinkerton and the youngest brother out of the family is Bill Pinkerton. While Lance is a smooth-talking Party Animal and romanticizer, and Bill is Good, Lucky, and Easily Impressed, Gunter is simply a Ladies Man sim, plain and simple, Him and his brothers lived in the same neighborhood as the Edison sisters, four attractive, young adopted girls around the same age of each other. Bill ended up being the boyfriend of hot headed,bossy, controlling Daisy Edison, and Lance, at first, was interested in Courtney Edison, until he found out she was mean spirited, a slob, and insane and gets easily jealous. (Lance later ended up with Anna Evans, instead.) Gunter next tried going for Edna Edison, the second oldest sister. Though she didn't accept his advances for WooHoo, the two did end up becoming the best of friends.
Gunter is pretty athletic and a gym-nut, but mostly only to get women. He was lead by a sports recruiter to enter the professionals and ended up becoming an MVP over time, and eventually, a celebrity Sports Superstar. Most of his Dreams revolve around women and WooHoo'ing them in some way. Behind all his bravado, though, he is a pretty decent guy and is the legal guardian of Rob Garner. He also is a master cook and a pretty decent Angler, as well.