Credit: SWNS / Asia Dias

A couple surprised family and friends by inviting them to their engagement party - and tying the knot there and then.

Julia Polley 29, and her partner, Kevin, 32, invited 120 of their nearest and dearest to 12twelve events in Whitby, Ontario, Canada, for a party to celebrate on April 27.

But while making a speech - thanking them for attending - Julia joked it would be easier to wed there and then.

She told guests "if you give me 20 minutes to change my dress, we could make it work" - before dashing off to get into her gown.

The couple exchanged vows and say there wasn't a dry eye in the house.