Last night, seven brave men and two fearless women took the stage at The Rock and Roll Hotel to compete in the 2010 D.C. Air Sex Championship. Air sex is like air guitar, but instead of an imaginary instrument, you have an imaginary partner. Last night’s air sex performances were often confusing — Is she opening a door? Making a sandwich? Giving a reach around? Who knows? — and occasionally awkward, but pure comedy gold. Some contestants came prepared (one of them had even competed the year before) with props, costumes, and choreography, while many signed up spontaneously when they got there, egged on by their friends, won over by the offer of a free drink for participating or encouraged by gregarious host Chris Trew.