‘Bachelor Canada’ Brad Smith and Bianka Kamber attend Operation Smile Event in Toronto

North Stars

Bianka Kamber's charitable side has got legs.

The "Bachelor Canada" winner and husband-to-be Brad Smith attended Operation Smile's Toronto Smile Event at the Windsor Arms Hotel on Thursday, along with a handful of other famous faces, including Lydia Hearst and Ben Mulroney. The reality TV stars were there to help celebrate Operation Smile's 30th anniversary after helping perform almost 250,000 free surgeries on children with deformities like cleft palates.

Smith showed up to the "black tie optional" event sporting a charcoal suit with a baby blue silk tie, while his fiancée wore a short black dress, all the better to show off her legs with. The 28-year-old nurse from Ontario, who has admitted she has a weakness for shopping, put her high-cut frock to good use, flashing her shapely gams (not to mention her pearly whites!) for the cameras.

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And it appears that everyone was a little playful Thursday night. Halfway through the evening, Smith lost his tie and gained a pocket square.

"Operation smile! Tonight was a blast!" he tweeted afterwards. "Thanks @benmulroney1976 for the late night pocket square. A few drinks by this time."

The 30-year-old footballer and his bride-to-be have been making the red carpet rounds after getting engaged in November on the inaugural "Bachelor Canada," despite having only been together a few months.

"This is still so new -- being out in public -- that our focus over the next little bit is our relationship," Smith told omg! Canada in November, adding, "over the next month or two, we're going to just try and overdose each other with love."

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They are also sharing their love with the rest of the world. On Feb. 12, the couple hosted Toronto’s Most Eligible Bachelor/Bachelor Auction to benefit the SickKids Foundation and also appeared at Luke’s Legacy Sweethearts for SickKids on Feb. 10 to raise money for the SickKids hospital's Cardiac Critical Care Unit.

Talk about a couple of sweethearts!