We frequently take long drives to visit family in other states or for vacation, and its pretty well understood at this point that the wife will wear a short skirt or summer dress with nothing on underneath. I used to have to request it, now she just does it without me asking. And similar to what an earlier poster said, my wife will also usually use the long car rides to take naps, which involve her feet up on the dash and the summer dress riding up (or pulled up by me!) above her waist to expose her bare pussy. I'll often unbutton her top or pull the straps down off her shoulder and get her tits out, so she is, for all intents and purposes, basically naked in the passenger seat. Certainly makes for a much more interesting ride!
That said, I have often wondered how visible she is to the truckers. I think she's not too visible to other normal sized cars, but I assume the truckers can see her very well? Not trying to cause a hazard on the road by distracting them, but I feel its more of a public service to thank them and keep them awake on their long hauls by giving them something nice to look at (my wife is stunning and gorgeous, long sandy blond hair, perfect B cup tits with always hard dark nipples, completely shaved pussy, and nicely toned and fit). And yet, I'm always amazed by how few of them actually look down and notice. I realize zooming by very fast doesn't give much opportunity to notice her, so I tend to slow down to pace them, just for a few seconds, to give them a good show. I only do this when she's asleep cuz if she notices I'm slowing down she gets pissed. Not because she's showing her goods, but because I'm extending an already long trip
But at other times she definitely gets noticed. I remember once in particular we were driving home from the airport after a trip to Jamaica. She had been pretty much nude all week (Hedo), and she was feeling free and horny as hell, so she started sucking my cock on the drive home. This placed her bare ass and pussy facing right up against the passenger side window. With her head buried in my lap she didn't notice - and didn't care - as I pulled up right beside a truck and paced him. It was dark outside so I turned on the cabin light to give him a good view. He kept up so I know he could see, and I could make out his face from the window as he watched. Went along like that for a good 15-20 minutes as I reached over her ass and played with her pussy for him.
Unfortunately I don't have many pics of these adventures to share since I'm always driving when it happens! Found one, so you'll get the idea (and cuz I know all you wonderful pervs will ask
So I'd say thats a little of both "teasing" and "serious"!