The 55-year-old brunette beauty posted two bikini photos taken by her actor husband Harry Hamlin, with whom she has been wed since 1997, in Baja, Mexico.
And in her caption, the Real Housewives Of Beverly Hills star admitted that she was 'shameless' for doing so.
There was not a flaw on Lisa's body as she made the most of a tiny string bikini in a leopard print.
The beauty was seen reclined on a wall top and also on the beach in her mystery seaside location.
Lisa recently celebrated her 22 year wedding anniversary to Hamlin, saying he was the best thing that ever happened to her.
Together they have two children: Delilah, 20, and Amelia, 17.
And looking back on where it all began, Lisa shared an image from their wedding day as they kissed for the first time as husband and wife.
In the old photo, we see the happy couple with their lips locked and Harry clutching tightly to his bride.
The Days Of Our Lives beauty wore a long veil in her up-do with a white simple wedding gown.
Surrounded by vines, the moment was like one you'd only expect to be seen in a romantic film.
Continuing in her walk down memory lane, Lisa posted another picture on her Instagram stories, again showing her and Harry on their wedding day.
In this one, they smiled widely while facing the flash of the camera.
Lisa's bangs covered her face, showing the actress back in the prime of her thirties at age 34.
The loving couple embarked on a crazy adventure together this week to celebrate their 22nd wedding anniversary as well.
On Instagram, Lisa's been posting nonstop with a look at her and Harry's trip to Baja, Mexico.
In numerous videos Lisa showed off her daring side as she sat inside a boat out on the open water.
Getting the full experience, she got to pet dolphins and gaze at seals during her rocky ride.