You may think you've outgrown the circus, but you'll change your mind when you see what Cirque du Erotica 4 has cooked up. More than a dozen performers celebrate the sensual capabilities of the human body in an artistic display at 10 p.m. tonight at R-Bar (3960 Chouteau Avenue; www.r-barstl.com) You'll witness sexy circus acts, sideshow stunners, live music and decadent dancers, including local favorite Ami Amore, bellydancer extraordinaire. Tickets are $12 per person or $20 per couple.