Did Mick Jagger Cheat on His Pregnant Girlfriend?

Last December, 74-year old Mick Jagger had a son with his 30-year-old girlfriend, Melanie. Now, the British tabloids claim he was cheating on her with an even younger girl WHILE she was pregnant!

He has supposedly been seeing a 23-year-old 'Kuwaiti-American heiress' named Noor Alfallah for TWO YEARS.

If that's true, he cheated or IS CHEATING on both of them.

Despite all of this, Melanie reportedly considers herself his '#1 Girlfriend.'

💙 Thank you @lizzyjagger for the sweet introduction 😍😂 ❤️

A post shared by Melanie Hamrick (@melhamrick) on

A so-called "insider" says, "It's Mick being Mick. He always has lots of pretty girls around. What's surprising is how serious he is about new girlfriend, Noor. He normally has a #1 Girlfriend, and then a series of flings."