Me and my fiance want to try zoo stuff and I want to get a german shepherd both as a regular pet and a partner. But she thinks they're too big and she doesn't want anything bigger than i am go in (which i agree to). A quick Google search showed me that an average German shepherd penis is 8 inches long, and im not buying it cause there's no way all of that goes in. So my question is, how deep does a german shepherd go in?