The Prompt: First Friday night dinner Blaine goes to.
Burt still isn't so sure about Blaine. Sure, he's met him plenty of times, plenty more now that he and Kurt are dating, but that doesn't mean he really likes him any more. He still remembers finding a hungover Blaine in his son's bed, his gay son's bed only to find out later that Blaine was making eyes with Rachel, of all people.
He tried not to judge too much, Finn certainly seemed to like her, but she was kind of intense and from all the things he'd heard from Kurt and witnessed with Finn, she didn't seem like the best person to be in a relationship with.
Then there was the whole garage incident. Burt tries not to think about it and tells himself that Blaine and Kurt weren't together at the time, that it was weeks before they had gotten together, but part of it just doesn't sit right with him.
Now here they are, six weeks after Kurt came home grinning like a loon with the most lovesick expression he'd ever seen on a teenager before, let alone his own son. He makes Kurt happier than he's ever seen him, at least since before they lost his mom, so Burt thinks he's gotta give Blaine a chance.
Blaine's been over for dinner before, many times when the boys have spent too much time doing homework (Burt tries to tell himself that homework is all they're doing) and another place gets set at the table and Blaine staying isn't even really a question. Tonight, however, is the first time Blaine will be at the family Friday night dinner.
When the doorbell rings, Burt is the only one freed up enough to get it, but he can't help being a little surprised by the boy on the other side of the door. Friday night dinners have always been a casual affair, but when Blaine steps in toting a bouquet of colorful flowers, wearing a suit and tie, Burt can't help feeling underdressed in his regular jeans and flannel shirt.
Blaine greets him just as cordially as ever, and Burt reminds him to call him Burt before letting Blaine head into the kitchen to greet Kurt.
Burt follows Blaine into the kitchen a few minutes later and finds the flowers already in a vase and Blaine's jacket slung over a chair. Kurt works at the stove while Blaine washes lettuce in the sink, his sleeves rolled up and tie loosened. Burt can't help watching from the doorway for a moment, staying unnoticed as the boys pass each other and Kurt brushes his lips against Blaine's. Blaine smiles to himself, a little dreamy-eyed as he gets what he needs from the fridge and leans back against the closed door and looks at Kurt like he's the only thing in the world.
Burt backs away from the doorway feeling a little bit better about Blaine and just a little bit like he was intruding on their life. He listens to the sounds of soft laughter coming from the kitchen, of plates clanking onto the table, and of the silverware being set, and by the time they do sit down to eat, it's like nothing is different, it's just another Friday night dinner with his family.