I had one a few years ago. It's a part of the Adult Toys marketing campaign. It's one of the more rare of the optional packages, as far as I know.
Mine was a '79 150 4x4 shortbox Sweptline, 360 automatic. I think all of them were. Although mine was a little faded, it was dark red, with a multi-color stripe (shades of orange to yellow) wrapping around from the tailgate of the box to the door, then turning down to end in a large DODGE at the bottom of the door. It also had PICK 'EM UP on the tailgate in the same shades as the side stripe, and a small stripe on the hood, same shades. I have some pictures of it somewhere. If I find them, I'll post them on this.
I ended up selling mine to a guy in Eau Claire, WI in 2002 who still has it, although I haven't seen it on the road in quite a while. When I sold it, the body was really solid & straight, but the tranny was going out for the second time (reason I sold it), and the wiring was a mess.