About half a century ago, in Europe, I happened to be in a game of Spin The Bottle. Guests sat in a circle (In couples.) and drained wine bottles. Whoever drained the last swig had to remove an item of clothing, spin the bottle and kiss the person it pointed toward until the bottle was spun again by the person seated next to the kisser, usually that person's spouse. Does that make sense?
One found himself in longer and longer kisses with more scantily clad competitors. People started lying down to kiss. You can imagine where the game went from there.