"Teen Mom 2"
Stars of MTV's "Teen Mom 2" (L to R) Jenelle Evans, Kailyn Marroquin (Lowry), Chelsea Houska and Leah Messer-Calvert. Teen Mom/MTV

As if the “Teen Mom 2” Season 5 finale wasn’t dramatic enough, the cast’s coming reunion special is rumored to be even more explosive. The “Teen Mom 2 Finale Special: Check-Up With Dr. Drew,” set to air in two parts on MTV on Tuesday and April 22, will reportedly include not only a recap of this season’s events, but also a laundry list of shocking issues regarding the four former teenage mothers.

Leah

Leah Messer-Calvert, 21, admitted to having issues with her husband of two years, Jeremy Calvert during season 5. While viewers were never privy to their exact martial problems, the reality star did hint that her open lines of communication between her ex-husband and father to 4-year-old twins Aleeah Grace and Aliannah Hope, Corey Simms, was a source of contention for the pipeline engineer. While the pair appeared on good terms during the season finale, Calvert even agreeing to counseling in previous episodes, In Touch Weekly claims there may be more to their televised disagreements.

According to the tabloid, Simms, 24, begged to reconcile with Messer-Calvert just days before his wedding to his now wife, Miranda Patterson last June. “He told Leah he wanted to be with her again,” a source told the magazine,” confirming that the mom, also to 14-month-old Adalyn, turned down his advances.

Kailyn

Kailyn’s Marroquin’s (née: Lowry) anger issues have long played a part in her “Teen Mom 2” segments, the mom to 4-year-old Isaac even hitting her now husband Javi Marroquin while cameras were rolling during an argument last season. While Kailyn, 22, was shown struggling, yet happy, with her new baby Lincoln during the finale Sunday, In Touch Weekly claims the newly married couple is not as perfect as they may seem.

“The night before the reunion, Kailyn smacked Javi during a fight,” a source said, adding that the reality star was “forced” to reveal details of the assault during the reunion taping.

According to a sneak peek of the reunion via MTV, Javi and Kailyn’s ex-boyfriend, Jo Rivera, will also fight (with their words, not their fists) during the upcoming episodes. “Javi and Jo might look civil on-screen, but it’s a whole different world off camera,” teased the network.

Chelsea

While Chelsa Houska’s ex-boyfriend Adam Lind is frequently portrayed as the villain on “Teen Mom 2,” Lind reportedly dishes some details about the 22-year-old ex-beau during the reunion that may shatter her good girl image. According to In Touch Weekly, Lind, 21, revealed that Houska has allegedly had two shocking affairs in the past years, one while she was pregnant with their now 4-year-old daughter, Aubree.

“He claims that Chelsea slept with one of his three older brothers about a month before she met Adam,” said an insider, adding that Linda also shared that Houska was intimate with one of his good friends while she was seven months pregnant back in 2009.

Jenelle

While there is no word as to what Jenelle Evans and her newest love Nathan Griffith will discuss during their reunion segment, the tabloid revealed that a majority of the expectant couple’s drama occurred behind-the-scenes. According to the report, Griffith, 26, was spotted flirting with a girl at a hotel bar during the taping of the TV special in Los Angeles while Evans, 22, was “sick in bed.” Reportedly one fan recognized the teen mom star, calling him out of his behavior, the former Marine only to respond by allegedly saying, “Jenelle who?”