Nude party at the beach

I was with a group of forty people at the seaside in June. The night was warm so we started a party at the beach. Beer was pouring as rain. Suddenly someone came up with idea: if someone takes off all clothes will get four cans of beer from the others. Everyone was under the influence, so almost immediately a few persons stripped (guys and girls). It ended up with nearly thirty people sitting naked and the rest of those who did not want to strip had to jump to the store for beer for naked ones. The worse thing was the next day as it turned out that clothed guys took many photos of us in a variety of strange positions and situations. For example - me and ten other people lying on each other. I was so drunk that I can remember nothing, but fortunately images left.