Kate Hudson thinks of ex Nick Jonas as "an old man in a young man's body"

Nick Jonas has an old soul, according to his ex, Kate Hudson.

The "How to Lose a Guy in 10 Days" actress, 45, reminisced about their 2015 fling while playing Plead the Fifth on “Watch What Happens Live” on Wednesday.

During the segment, host Andy Cohen asked about Hudson's relationship with the younger singer, 31, after avoiding the "countless rumors" for years.

“Looking back on it now, how would you characterize that relationship?” Cohen, 56, asked.

Hudson let out an uneasy laugh before describing their brief romance as "a moment" in time.

“Lovely, fun, kind … he’s like an old man in a young man’s body and we love him,” she added.

Neither Hudson nor Jonas ever defined their relationship after sparking romance rumors with a date at Disney World in September 2015.

At the time, an insider informed Page Six that the pair were "hanging out" but "not dating" after meeting through mutual friends. Another source confirmed to TMZ that they were "absolutely" hooking up.

Although their romance was brief, the Jonas Brothers member spoke highly of the actress-turned-singer in a January 2016 interview with Complex.

“Kate’s incredible. We had an unbelievable connection as two humans who just admire things about each other, and see something in each other that’s beautiful,” he told the outlet.

However, he chose not to divulge any details about their romance, “out of [his] best effort to respect her and her privacy.”

“I’m not going to say if we had sex or not. But we did have a beautiful connection,” he added. “Even now I have so much admiration and respect. She’s amazing.”