Nick Lachey and Jessica Simpson in 2005 (Getty Images)
Lachey and his 98 Degrees bandmates appeared on "Watch What Happens Live" Tuesday night, and the singer was put in the hot seat when host Andy Cohen asked the 39-year-old when he last spoke to his ex-wife.
"Is this the point where I can plead the Fifth?" he asked. "It's been years. Honestly, probably six years. It was like another lifetime ago."
And he's not reliving the past by watching old episodes of his reality show either.
"As you can imagine, that's not popular viewing in my house," he said. "We don't sit around as a family and watch the old DVDs."
For both singers, it's understandable that their relationship should feel like such a distant memory. Lachey is currently married to Vanessa Minillo and they have an 8-month-old son, while Simpson is pregnant with her second child with fiancé Eric Johnson.
Still, Lachey doesn't miss being tied to Simpson's father and manager, Joe Simpson.
When Cohen asked what the best thing about not having Papa Joe as a father-in-law was, Lachey could've "pled the Fifth" this time, but he couldn't contain himself.
"The best thing about not having Joe Simpson anymore as a father-in-law is I don't have to play grab-a-- under the table on Easter Sunday," he confessed.
Not surprisingly, the host -- as well as the rest of 98 Degrees -- was floored that the star went there.
"Our publicist is freaking out right now," Nick's brother Drew noted.
"Wow, that's funny," Cohen said, trying to pull himself together.
Nick continued to laugh, responding, "It may not be tomorrow, but it is tonight."
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