The fiance of RONNIE WOOD's daughter was terrified by THE ROLLING STONES after his proposal to art student LEAH. British journalist JACK MACDONALD, who works with Sky News, got down on bended knee to the 28-year-old on a recent holiday to Kenya. While Leah's parents Ronnie and JO were delighted with the news, the engagement has prompted some warnings from the bride-to-be's extended family - namely, aging rockers SIR MICK JAGGER, KEITH RICHARDS and CHARLIE WATTS. MACDonald says, "Mick, Keith and Charlie all took me to one side separately and said: 'If you f**k with this girl, you're in big trouble.' "That was more scary than meeting Leah's family, because you're confronted with Keith Richards!"