Photo: L. Cohen/WireImage

Heather Locklear, Lisa Rinna

Lisa Rinnais singing former costarHeather Locklear’s praises.

TheReal Housewives of Beverly Hillsstar, 58, worked with Locklear, 59, on the long-running soap operaMelrose Placein the late 1990s.When Rinna joined the show in 1996, five seasons had already aired, four of which starred Locklear.

On this week’s episode ofPEOPLE in the ’90s, Rinna told co-hosts Andrea Lavinthal and Jason Sheeler that joining the iconic series several seasons in had her “scared s—less,” though Locklear helped ease her fears.

“It’s never fun to be the new girl coming into a very popular, established show,” she said. “It’s scary, scary, scary. But starting from the top, Heather Locklear could not have been nicer and more welcoming, which then sets the tone. I always felt very welcomed there and really good, and that’s all due to Heather.”

And while she and Locklear didn’t spend much time together off-set, Rinna said theDynastyalum taught her a lot about acting.

“Heather and I had a great relationship, and she just was such a star,” she recalled. “I learned so much from Heather Locklear, probably more than anybody. I learned a lot from Heather and I learned a lot fromJason Batemanwhen I didThe Hogan Familyfor six episodes. Two of the most professional, talented people in this business. What I learned from them is what I take into my professional life and what I have shared withmy daughtersto this day. They are true pros.”

“And so Heather and I had a great time. I mean, we weren’t best friends off-camera — we didn’t hang out every minute,” she continued. “We were actors that worked together that really respected one another and allowed each other to have the space to play, and it was just a brilliant experience for me.”

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Rinna also said she “loved” the exaggerated drama and her character, Taylor McBride.

Everett

MELROSE PLACE, Lisa Rinna, Heather Locklear, Rob Estes

Elsewhere in the episode, Rinna dished on another one of her former costars, Patrick Muldoon, revealing that the pairhad a flingwhile working together onDays of Our Lives.

Asked about her most “surreal” ’90s moment, Rinna replied, “Having an affair with the guy who played my brother.”

“Well, not an affair, but a couple of one-night stands with the guy who [played] my brother. Patrick Muldoon and I had like, a thing,” she continued, clarifying that it was before she met now-husbandHarry Hamlin.

Rinna played Billie Reed onDays of Our Livesfrom 1992 to 1995, during which time Muldoon, 52, played her onscreen brother, Austin Reed. Since their exits, the two have returned several times to reprise their roles on the long-running show. Like Rinna, Muldoon also went on to star inMelrose Place.

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source: people.com