Most controversial among Cirque’s offerings, Zumanity is an erotic circus that celebrates sexuality in all its myriad incarnations: men with women, women with women, men with men, senior citizens with other seniors or with young folks, little people with Amazon-sized women, group sex, masturbation, you name it. Which means that when the two strong men are lifting one another in the classic “watch our veins pop out as we imitate Atlas” act, it’s clear that there’s a lot more than just lifting going on between these two. And when the aerialist hanging from the long silk ribbon is flinging herself around the stage, it’s all about S&M and autoerotic asphyxiation. Those who are open-minded will find the Cirque magic here, as much of it is visually arresting. One of the last times I was there, however, a number of people did walk out, so think honestly about what makes you squeamish before you book. Shows are held Friday through Tuesday at 7 and 9:30pm (show times vary seasonally).