Amber Portwood and Farrah Abraham’s reunion show brawl is nothing compared to Kailyn Lowry and Briana DeJesus’ blowout! On this week’s Teen Mom 2, the enemies fight it out while backstage at the reunion.

The episode kicked off with Lowry discussing how “shady” her ex-husband Javi Marroquin was being during his trip to Florida with their son Lincoln and her son Isaac from a previous relationship. Lowry learned Marroquin was staying in the same hotel as DeJesus.

“Could you imagine someone you work with is dating your ex-husband? It’s weird,” she said to her friend. “It’s messy. I don’t think she’s a good person.”

DeJesus was more optimistic about the reunion, as she said, “I want us to all get along and have a good time.”

But when DeJesus walked into the room to get her hair and makeup done, Lowry went off.

"This is a f**king joke,” she said before storming off to speak with producer Larry. “Why is there not a separate space for Bone and the baby to go? He doesn’t have his vaccinations.”

She then added, “I don’t want to be around Briana. I don’t want to be around Jenelle Evans. I don’t want to be around Javi. I don’t want to be around these people.”

DeJesus laughed during Lowry’s meltdown, as she said, “There is a new b***h here!”

Although DeJesus claimed her and Marroquin are only friends, they discussed having a relationship.

“We texted about long distance,” Marroquin said. “It’s only a two-hour flight. I can come on the weekends. I do want to take you on a date.”

She responded, “Don’t start something you can’t finish. I just don’t want issues. If this is serious we can make something of it, but it’s still too early to tell.”

Later on in the episode, DeJesus finally confronted Lowry.

When she asked what Lowry’s issue is with her, she responded, “My issue is that you texted me telling me one thing and then Javi is telling me another thing. Javi is telling me ya’ll are basically trying to be together. I honestly don’t care if you all date, but he needs to be real about it and you need to be real about it.”

When DeJesus blamed Leah Messer for telling Lowry about the hotel, she said, “You’re the one who opened your mouth so you can blame yourself.”

Dejesus fired back, “You’re salty that Javi is moving on.”

Lowry yelled back, “I don’t’ give a s**t if he moves on Briana!”

When DeJesus told her to “shut up” because she’s “annoying,” Lowry called her “ratchet.”

Briana’s sister Brittany then got involved.

“Don’t call my f**king sister ratchet cause I’m the real ratchet one,” she said, as Lowry replied, “Bye Brittany.”

Brittany then screamed, “Don’t f**king dismiss me b***h. You don’t know who the f**k you’re f**king with. Because you’re mad over your ex man liking my sister. Don’t come at my sister like that. Oh b***h you don’t even know.”

Also on the episode, Evans and her husband David Eason had too much to drink while filming a special.

“I’ll drink all of them,” Evans said as her and her husband downed shots.

“Larry, where’s the beer?” Eason asked. “We’re leaving unless we got some beer.”