Consort is not necessarily sexual, fe: The mayor was known to be consorting with known criminals. It’s also not necessarily an illicit relationship: “queen consort” in the UK for example.
Paramour works for both male/female illicit sexual partners.
Personally I like “her/his poolboy” for a ladies’/man’s male paramour, but that meaning is probably not going to be in a dictionary, though most people will get what is meant.
Consort is not necessarily sexual, fe: The mayor was known to be consorting with known criminals. It’s also not necessarily an illicit relationship: “queen consort” in the UK for example.
Paramour works for both male/female illicit sexual partners.
Personally I like “her/his poolboy” for a ladies’/man’s male paramour, but that meaning is probably not going to be in a dictionary, though most people will get what is meant.
Boytoy is my preferred nomenclature for such relationships