This is our first dare and my wife and I had a sexy moment that led to this. We were both horny and fooling around when I asked her if she'd like to have a guy penetrate her from the back one day. She looked at me with a questioning but curious grin and we talked about it until she was so wet it dripped down her leg. She said it would turn her on to be in our bathroom and have a guest follow her there and take her on the floor doggie style. So the next day we took pictures of her like that which got her turned on all over again.
If anyone shares this fantasy please email us and we can chat and trade pictures.