Titillating twinks, beefy bears, macho muscle studs, a bevy of queens gawking from a distance - to be sure, there was no lack of diversity (or sexual chemistry) populating this year’s Main Event. If your gay-boy libido didn’t kick into overdrive at PhillyGa圜alendar’s Boys of Summer event on Saturday at Voyeur, you should probably see a doctor - pronto.