Today we went to a nude beach and my boyfriend made me slowly undress as we walked along to find a spot. Then once we sat down, I got on all fours and sucked him off. I got so turned on that he told me to shut my eyes and that he was going to draw a big arrow directly to my naked pussy / arse saying "Fuck me, chose a hole". He did this and walked off. I was left lying there waiting for people to come up and follow the sign...