Gwen Stefani and Blake Shelton will have an extra special festive season this year for a sweet reason.The couple have just kickstarted the holiday season with a wonderful Thanksgiving together and things are only getting better.MORE: Inside Gwen Stefani and Blake Shelton's new marital home While they've spent many Christmases as a unit, this is their first as a happily married couple. WATCH: Gwen Stefani beams in newly unearthed video of her engagement to Blake SheltonThey'll open their