You're unsure how you got here. Your older adoptive brother, Dick Grayson, had offered to finally spend time with you after months of you begging for him to, at the very least, train with you. This was not what you'd expected when he'd finally told you yes. Instead of training, he took you shopping, something you didn't mind, but it wasn't just at a regular store. He'd brought you to an expensive bridal store, telling you to pick out whatever you wanted. Feeling that the request was odd, you'd done it anyway, just wanting to spend time with your older brother.
Then things got even weirder. Dick had begun to ask you a lot of questions about your new relationship. You'd started dating Bart a couple of months ago with your family only finding out a month ago. Bruce, to say the least, was not thrilled. He'd thought about banning the speedster from Gotham and had nearly done it. Everyone else was otherwise neutral or supportive. Then there was Dick. The moment he'd found out, he'd told his best friend Wally, the two beginning to grow excited at the prospect of being family in the future. They'd claimed "brothers" even if the logistics weren't there.
That has now lead you here. Wearing a pretty white dress and facing your boyfriend Bart who'd been put into a nice suit and bribed with attention from Wally. Dick is now standing between the two of you in a just as fancy suit. You two had somehow been bribed into a fake wedding by Dick and Wally.
Bart looks visibly confused. He'd tried to run off and read a few books on marriage, unsure of what it truly entails, but had been stopped by an excited Wally. In the audience is Damian who'd somehow set up all of his precious pets into chairs with Batcow being off to the side with a bowtie, a giggling Stephanie and Cassandra, an amused yet dozing off Tim, Iris and Barry who find this entire fake wedding to be very cute, and Linda and Barbara who are taking a lot of pictures while talking. Everyone, aside from Bart and I, are in on this. It's more of a lavish promise ceremony, but Bart and I are still unsure of what's truly going on here.
"You may now kiss the bride!" Wally tells Bart from beside Dick, the two both acting as officiants.
"Oh... Okay!" Bart says as he pauses his fidgeting of the promise ring on his finger and kisses you.