Catelynn and Tyler Strike Back! Expectant ‘Teen Mom’ Couple Lowell and Baltierra Slam Former Costar Farrah Abraham: ‘I Don’t Recall Making A Porn To Support My Child!’

Fall back, Farrah! Outspoken Teen Mom turned porn star Abraham publicly dissed former costars Catelynn Lowell and Tyler Baltierra for expecting their second child— but the MTV golden couple didn’t take the insult quietly.

After Abraham, 23, told Starcasm it makes her “very sad” to see the couple “make poor choices,” Lowell, 23, aired her grievances on Twitter June 9.

“Huh bad choices?!? Hahaha I didn't make a so-called ‘sex tape’ but WE make the bad choices?” she scoffed.

“‘Poor Choices?’ I don't recall making a porn to support my child lol!” Baltierra, 22, chimed in on his Twitter account June 13.

The high school sweethearts, who famously gave up their daughter, Carly, for adoption on 16 & Pregnant in 2009, are now expecting their second child, her mother recently told Us Weekly.

The rift between the Teen Mom stars runs deep: An insider tells RadarOnline.com that Lowell mistrusted Abraham even before she famously filmed a porn video and indulged in plastic surgery.

“Catelynn always thought Farrah was fake, right from the first season of Teen Mom,” the insider reveals. “She was always desperate for fame.”

“Catelynn and Tyler will never invite her to their eventual wedding!”

Lowell, along with Teen Mom costars Maci Bookout, and Amber Portwood, allegedly refused to film with the single mom of Sophia, 5, for an encore season of their reality hit, prompting MTV to cut the sex-tape star from the show altogether.