Wednesday is the day for reality show sex scandals. Two-time Dancing With The Stars champion Cheryl Burke stands accused of sleeping with Jessica Simpson’s ex-brother-in-law, Drew Lachey. The affair ended in late January after Cheryl’s then-boyfriend, Matthew Lawerence, caught the professional dancer performing oral sex on the very-married Drew in a parked car in Jacksonville, Florida.

Cheryl and Drew, DWTS Season Two’s champion couple, had an affair during the show’s nationwide tour which ended last month, according to a scandalous new Star Magazine report.

“They didn’t go very far to cover it up,” one tour insider tells the tab. “Cheryl was constantly draped all over Drew. They held hands, had their legs intertwined and were always touching inappropriately.”

Drew had to be restrained as he ranted at Matthew and his brother, Joey in the parking lot. “If you talk about this, I’ll bury you Matt. I’ll bury you Joey. I’m serious I will hurt you,” he screamed.

Matthew won’t confirm or deny that Cheryl and Drew were sleeping together, simply telling Star:

“There are too many things going on. I can’t talk about it.”

Cheryl has partnered with actor Steve Guttenberg on the sixth season of Dancing With The Stars.