Consider just how much fun this could be: Physically fit young gay and bi Atlanta men all together for a casting call on Tuesday in a Midtown bar. It could be a porn in the making, but it’s not. The two-hour event at XS Ultra Lounge is pitched as a casting call from the producers of a handful of big-name projects. But white boys, this event is for hunky black and mixed guys only. Hey, they like what they like. Yeah, it’s like that.