HONG KONG, July 9 -- Aaron Kwok may be known for his slick dance moves and high-octane performances, but it's his latest flex that's got fans talking - and no, it's not another luxury car.

The 59-year-old Cantopop legend reportedly upgraded wife Moka Fang's supplementary credit card to a no-limit one after learning that baby number three is on the way - and it might be a boy.

According to East Week, the Hong Kong superstar has been overjoyed since finding out the baby's gender and didn't hesitate to share the good news with his mahjong buddies.

And if the reports are true, Kwok will be the first among the Four Heavenly Kings to have a son - Jacky Cheung, Andy Lau and Leon Lai are all dads to daughters.

Kwok already has two girls, Chan...