Teen Mom 2's Jenelle Evans, boyfriend Nathan Griffith, and son Jace go trick or treating on Oct. 31, 2013. Credit: Courtesy Jenelle Evans

Meow! Teen Mom 2 star Jenelle Evans tweeted a photo of herself wearing a skintight Catwoman costume while taking her son Jace out trick or treating with boyfriend Nathan Griffith. Jace was dressed as Iron Man and Griffith was wearing a full-body Spider-Man costume. Hmm, a theme emerges! 

Evans, 21, does not have custody of her 4-year-old son (her mother Barbara Evans does), but still tries to spend as much time as possible with the tot. 

The jail-prone star has been arrested at least nine times in three years. Her most recent arrest took place in mid-August when she failed an impromptu drug test while in court to stay out of jail for heroin and illegal Percocet possession charges. 

She has been dating part-time underwear model and trained MMA fighter Nathan Griffith for several months now, and the couple spends plenty of time with little Jace. 

Evans rose to MTV fame on season 2 of 16 and Pregnant in 2010. She then went on to star in Teen Mom 2, which just ended season 4 and is rumored to be filming season 5 now.