Well if your going to hook up to Electric then you need an extension cord. If your hooking up to your water then your camper has a hose that connects to water same w/ your plumbing. haha But if your asking about hook-up w/ a guy then good food, blankets, bug spray!, and your imagination!
Maybe you could google it...saying romantic ideas outside, things to do on a date outside, etc. Hope that helps, & have a good time!