LYNN ? Grandma’s 3rd Leg bills (G3L) itself as a performing arts group “dedicated to taking over the world one inappropriate joke at a time.”Cast member Emily Laverdiere of Beverly said the group has been working toward a plan of world domination since it launched its official Web site www.grandmas3rdleg.com.in 2008.”I’ve always believed that laughter will save the world,” the Salem State College student said. “So it’s a good thing we’re inciting a hostile take over. That’ll fix things real quick. It will also make us immune to falling victim to the zombie apocalypse.”The group will be performing its latest show “Gender Benders” at Fran’s Place, 776 Washington St., Saturday at 9 p.m.Andy Scannell, who has been with G3L for three years, said the show would consist of sketches written and performed by the cast.”Think ‘Who’s Line Is It Anyway’ meets ‘Saturday Night Live.'” he said. “We plan on going above and beyond this time around to bring a whole new audience into our fan base.”Scannell, who is a native of Georgetown, described himself as a “super-senior” at Salem State College where he is pursuing a degree in theater and education.Danvers resident Lauren Robinson said she tried to sneak into a G3L audition just to watch and for some odd reason was cast in the show. According to her fellow performers, Robinson disapproves of cursing and inappropriate behavior, which abound in the show.”She isn’t funny, smart or creative,” one of her fellow performers said. “She isn’t even a theater major. She is short and usually blond. That is all.”Saugus resident Britt Mitchell is also a theater student at Salem State College. She has written many of the skits performed by G3L including “Legends Of The Hidden Temple” and the infamous “The Tactless Bastard,” which she said is based on her life. Other performers in the show include Devin Jeffers of Salem and Kevin Blake of Rochester.The set list for the Lynn show hasn’t been set in stone but one skit sure to be included is about a young man responding to a roommate ad to find that the potential roommates are members of a sick cult.