Chances are if you're familiar with actor Matthew Rush, it's not from his stage work. Rush--with the Superman body topped with a Ralph Lauren Polo ad face--is best known for his work under the covers, on top of the covers, on the floor, outdoors. His work as a gay porn actor takes him lots of places, including into theaters where he plays the lead in Making Porn. But it's not a biography. Making Porn is Ronnie Larsen's comedy about the behind-the-scenes action of the gay porn industry, which also stars Rob Romoni, a--for lack of a different word--newcomer to XXX films. As you might expect, Making Porn contains nudity and strong language. The play opens Wednesday at Teatro Dallas, 1331 Record Crossing Road, and runs through November 28 at 8 p.m. Wednesdays through Fridays, 7 p.m. and 10 p.m. Saturdays and 3 p.m. and 7 p.m. Sundays. Tickets are $25 to $35. Call 1-800-965-4827.