Did Leonardo da Vinci paint two Mona Lisas? Where are they?

Donna Nuda:

La Joconde nue:

Obviously, the original Mona Lisa also inspired some cheeky versions of her.

Walking more may lower your risk for chronic low back pain by 23%, study suggests - KSL.com

Source: Chantilly, Musée Condé, France.

Source: Louvre, Paris, France.

There is only one Mona Lisa, at the Louvre, fully credited to Leonardo. However, there are several Mona Lisa look-alikes from his studio, some of them quite saucy. The one most similar to the Louvre one is the Prado Mona Lisa, a copy made simultaneously in Leonardo's workshop while he painted the Mona Lisa, probably made by an apprentice(s):

I replaced my notes app with ChatGPT — here’s how it upgraded my productivity - Tom's Guide

Then there are the ‘meza nuda’ paintings from his workshop, often referred to as Monna Vannas.

Another version of the above exists, attributed to Salaj:

Evidently there was a market for erotic paintings. The American art historian David Brown, curator of Italian Renaissance paintings at the National Gallery of Art in Washington, has suggested that da Vinci painted a saucy parody of the Mona Lisa for his patron Giuliano de Medici, and that the Salai version is a copy.

A kid threw a stone at my car. I confronted his mom (who was nearby). She said, "You can't prove it was my son." How should I have reacted?

For the one below, art experts suggest that it contains touches indicating that Leonardo contributed to it.

While overall similar, there are differences in the shape of the face, the background and other details.

Source: St Petersburg. Hermitage, Russia.

Brain ‘Reset Wave’ May Explain How ECT Rapidly Relieves Depression - Neuroscience News