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

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):

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

Source: St Petersburg. Hermitage, Russia.

Ten takeaways from WSJ report that BNY approached Northern Trust about a merger - Global Custodian

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.

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

Donna Nuda:

How does it feel to have sex with a 40 year old curvy aunty?

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

Another version of the above exists, attributed to Salaj:

Source: Chantilly, Musée Condé, France.

Is there any way for Zelensky to prevent the United States and Russia from harming Ukraine's interests?

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

La Joconde nue:

Source: Louvre, Paris, France.

Packers will take on all of Jaire Alexander’s dead money on 2025 salary cap, per report - Acme Packing Company