Robe Lowe is kissing and telling.

The actor, 62, named actress and model Nastassja Kinski as his best on-screen kiss ever during his appearance on “Watch What Happens Live” Sunday.

Host Andy Cohen asked him who his best on-camera smooch was during a game of “Plead the Fifth,” and Lowe named Kinski with zero hesitation — even as Cohen listed his other notable on-screen kisses with Demi Moore, Rashida Jones, Kim Cattrall, Calista Flockhart, Meg Tilly and more.

When asked why he named Kinski, Lowe bluntly replied, “Have a look at her.”

He added, “At that moment in time, she was probably the most beautiful woman I’d certainly ever seen.”

He also admitted he was intimidated to kiss her, recalling, “I was, like, very, very scared.”

Lowe and Kinski, 65, co-starred together in the 1984 film “The Hotel New Hampshire.” The comedy-drama directed by Tony Richardson is based on writer John Irving’s 1981 of the same title.

In real life, “The Outsiders” star has smooched plenty of famous exes, including Melissa Gilbert and Princess Stéphanie of Monaco. But in July 1991, he married makeup artist and jewelry designer Sheryl Berkoff.

They’ve been happily married ever since, and share two sons together: Matthew, 32, and John Owen, 30.

In 2022, he talked about falling for his now-wife when they met on the set of his 1990 erotic thriller,” Bad Influence.”

“I had the feeling that if I was ever going to be able to make it work with anybody, it was Sheryl,” he told People.

He went to rehab and got sober in order to have a future with her.

“I’m happy I lived the life that I lived because I have no regrets, but I was super ready to coach Little League, carve pumpkins on Halloween, read books and serve hot lunch on Wednesdays,” he reflected.

“I really, really loved every minute of it.”

Lowe also recently got candid about being “the only person happy” when Will Smith infamously slapped Chris Rock at the 2022 Oscars — because he hoped it would take the heat off his disastrous musical performance at the 61st Academy Awards in 1989, which he admitted was “the worst opening ever.”

“When Will Smith slapped Chris Rock, I was the only person happy. Because I was like, ‘Oh, good. So now that’s the worst moment in Oscar history,’” he confessed on SiriusXM’s “Andy Cohen Live” last Thursday.

Though the happiness was fleeting.

“But it turns out not really,” he said. “Turns out I still am dragged, dragged every year.”