Jenelle Evans and Kieffer Delp: Hitting it Again!

Teen Mom 2 star Jenelle Evans just can’t seem to stay out of trouble ... or the arms of Kieffer Delp. As her mom Babwha would say ... Dammit Kieffah!!!!!!

Ever since Jenelle broke up with Gary Head, it's been a non-stop bone-a-thon for the train wreck and her former boyfriend, according to Radar sources.

“She has spent the past few days with Kieffer shut up in her apartment having sex,” a source dished, noting that it could mean trouble for the hot mess.

“She’s only got days left of her probation and now she’s could end up back in jail because she’s not meant to be with him as he has a criminal record.”

Delp got out of prison last month, and he's already causing more headaches for Jenelle Evans, as their recent dalliance resulted in a visit from the police.

"The cops chased Kieffer away from Jenelle's home," a source said, with no word on whether he was wearing his trademark ratty green hoodie at the time.

It's unclear what brought police to her house this time around, though epic fights between the on-off couple have become par for the course on Teen Mom 2.

"Nothing happened to Jenelle in terms of criminal charges, at this time, but to say the police are sick of her and her drama would be an understatement."

Evans, 20, hasn’t let probation and court orders stop her hard partying. Since she can’t smoke pot because of random drug tests, she’s been dropping acid.

“She does it a lot ... she fell in love with it,” Tori Rhyne, a close pal of the Oak Island, N.C. native (or at least she used to be), told Star earlier this month.

Between that and Kieffer's reemergence in her life, her alleged quest to regain custody of son Jace - or a stable existence overall - may be short-lived.