Is 21-Year-Old Miley Cyrus Dating 42-Year-Old Jared Leto?

"Us" magazine claims MILEY CYRUS and JARED LETO are "hooking up."  For what it's worth, Jared is TWICE Miley's age.  He's 42, and she's 21. 


But apparently, they've known each other for a while, and have similar interests.  A "source" says, "They like to have a good time, they love to talk about art and music, and they're both comfortable with nudity!"


As we've heard, the current issue of "Star" magazine is claiming that Jared is hooking up with 30-year-old "12 Years a Slave" star LUPITA NYONG'O "Star" says they were spotted, "looking loved up" while having dinner together.