Kate Middleton's flirting ways piss off husband Prince William? On Wednesday, the Duchess of Cambridge appeared to have a little fun during the ICAP 23^rd annual Charity Day in London as she and the Duke helped stock brokers close deals with traders. But it seemed that Kate went a little too far for being too friendly and ended up getting reprimanded by her husband for embarrassing him.

On Dec. 9, Kate Middleton and Prince William got a taste of trading as they help a brokerage firm close the biggest deals by urging its clients. While the Duke got into the spirit, the 33-year-old Duchess, who wore an LK Bennett "Davina" power suit and showing off her new haircut, was more reserved and polite, People noted.

As Kate Middleton greeted traders, Prince William, who has been eavesdropping his wife of four years, couldn't help but joked about how his wife got a little friendlier with one trader.

"Catherine, I think you can stop flirting with them now!" Prince William teasingly told Kate Middleton. He then turned to a trader standing nearby and said, "Sorry, my wife is just embarrassing me!"

Aside from teasing each other, the royal couple also laughed and giggled as they met groups of outrageously dressed brokers, who based their costumes on the infamous TV ad showing a man walking down the street in stilettos with the Pussycat Dolls' song, "Don't Cha," playing in the background. Kate Middleton and Prince William also have some fun time as they went for a quick game of mixed doubles table tennis with British bright hopes Marcus Giles and Denise Payet, Daily Mail has learned.

"Come on, let's try and have more than a rally of more two goes," William teased, adding to his famously competitive wife, "You're not normally this polite when we normally play."

"Or this quiet," the Duchess retorted.

Meanwhile, ICAP donates a day's worth of its revenues and commissions to various charities every year. And this 2015, royal couple Kate Middleton and Prince William helped the brokerage firm close $547 million worth of deals on Charity Day. And some of the money raised will go to SkillForce, in which the Duke is a patron, and Place2Be along with SportsAid, which are two charities that the Duchess supports.

In other news, Kate Middleton was recently accused of being Princess Diana's copycat. According to Daily Mirror, the fashion choices of the Duchess have often mirrored those of her late mother-in-law, with insiders noting their similar personalities as well.

Do you think Kate Middleton was too flirty or just friendly?