The stars of Supernatural have cemented their friendship with matching tattoos.As Jared Padalecki, Jensen Ackles, and Jeffrey Dean Morgan prepare to launch the show's final season, the three stars have revealed they're inked up.The trio got together to celebrate Morgan's wedding on 5 October and signed up for a tattoo session in their formalwear, with the 53-year-old actor taking to Instagram on Thursday to share a photo of the threesome getting some art inked on their forearms."Me and (wife) Hilarie Burton weren't the only ones joined for life... Jared Padalecki, Jensen Ackles, and myself will forever have a bond that is both special, and permanent. Love you both dearly," he wrote in a caption.The images do not reveal the tattoo design the trio agreed on.The series debuted in 2005 and will conclude with season 15 next year. Morgan wed the former One Tree Hill star and longtime partner, who he shares two children with, in an intimate ceremony. "We've lived as husband and wife for a decade. We've built a family, and a farm and found our community," Burton shared on Instagram. "From the moment I met @jeffreydeanmorgan , he was my husband. Rather than make vows right out of the gate, we lived them. For over 10 years. The good times and the bad. Standing up there with our children at our sides - celebrating all that has been - was bliss. I love you, Jeffrey. I love our intimate group of friends and family who joined us. I love the various circles of loved ones who have supported us over the years."Morgan's current Walking Dead co-star Norman Reedus reportedly officiated the ceremony.