The lead up to the wedding involved kidnapping someone to officiate. Madam Bones wasn't pleased. She was even less pleased to discover the idiocy of both Fudge and Dumbledore, especially since no one had bothered to inform her about the peace treaty. The peace treaty and the fact that there had been several Ministry representatives present during negotiation and signing was a pleasant surprise. As was the destruction of both Greyback and Bellatrix Lestrange. It took a couple hours of proper explaining but by the end of it she was on board. It didn't hurt that she could tell the three of them actually cared about each other. So the wedding went forwards and was held two days after Harry's family had been informed of the pregnancy.

"Friends and family, today is a momentous occasion. Today these three wizards have agreed to spend the rest of their lives together, to enter into a bond that will hold them until death finally separates them. To be as one in the most sacred recognition of a bond they already share as mates. I have been informed that they will be allowing their own magic to provide the rings and that they are already blessed with a child on the way, further strengthening the magic of this marriage. As you all know until death do us part is no mere words and that even the muggles partly tap into the magic of marriage and love that binds a person's soul to their partner, thus making divorce horrifyingly painful for muggles and impossible for those of us with magic. Under the eyes of those gathered here, the Creator, and Lady Magic I now ask that if there is any reason to forbid this marriage you speak now or forever hold your peace," Madam Bones announced gravely.

No one said anything. So many of the women were sniffling and trying not to cry at the obvious love and happiness the dark trio was showing as they stood assembled before Madam Bones.

"Very well, gentlemen would you say your vows?" Amelia asked with a smile towards the trio.

"Severus, Harry may be my mate but you are our quiet heart. I know that we have been overly focused on what's been happening recently and much of that involves Harry. I know you've probably fallen in love with him just as I have but I also know that your wounded heart didn't expect us to fall in love with you. I tell you now that isn't the case. Yes, our relationship is different, it had to be with our pasts, but you are no less loved. Today I take you as one of my husbands in a bond that will forever change all three of us. I promise to be with you both in sickness and health, in both the light and the dark, for richer or poorer, through good times and bad. Will you, Severus Snape, consent to wear my ring? To finally be part of my everything for eternity?" Voldemort asked softly, a love that he had hidden as it grew for his two mates shining from his eyes as he reached out a hand. The thin titanium ring, engraved with smoking cauldrons and serpents, magically forming to hover above the skin waiting for an answer. They had both decided while the Damphyr was being sorted by the tailor that Severus needed the reassurance of being asked first by both of them and that they would exchange their own rings second after the vows were made.

Harry, beaming, took his cue to step forwards and offer his own vow.

"Severus, I have always respected and admired you. I was shocked and pleased that you accepted my suit that day in the hospital wing, though I have to admit that at the time I didn't quite know that it was an honest to god courting suit. I had a wonderful few months with you before we discovered that Voldemort was my destined mate, and I knew that no matter what I wouldn't give you up. I don't know if you realized it at the time but had my mate said I couldn't keep you I would have refused them, despite your warnings. You are to noble for captivity and yet you offered to live a life of soul-breaking captivity to keep me alive and sane. I love you and you honor me more than I will ever deserve being here today. I promise you that I will stand beside you both through eternity and do my absolute best to see that you both and your happiness are always cared for. Will you accept my own oath of fealty and love?" Harry asked raising his hand to reveal his magic just finishing his own thin half of the titanium ring. The edge clearly showing little hooks on one side that would latch into the matching depressions on the ring Voldemort had made, while the engravings had vines wrapped around different shaped vials.

"Yes," Severus choked out before seguing into his own vow to his grooms. "Voldemort, Harry, I never expected this when Harry chose me as his alternate mate. I never expected to be accepted much less earn love from either of you. I am astonishingly happy to say, I was wrong. I also didn't know until the two of you had claimed me that I've fallen for both of you as well and that I had been desperately lonely. You both drive that loneliness away and make my life complete. I would have been satisfied with far less than what the two of you have chosen to give me and I am grateful that you both decided to give it to me. I promise you both that I will stand by you through everything and do my utmost to make you both happy."

Severus extended his own hand and, concentrating fiercely, brought his own magic forward. Creating two rings of light before they solidified into a mix of white gold and platinum. They were simple yet elegant with a small ruby embedded in Voldemort's with an engraved ring of scales, mimicking a flower. Harry's had an emerald with a similar engraving around the stone using feathers instead of scales to create the flower effect. They exchanged rings, sliding them on to each other's ring fingers before Harry and Voldemort spontaneously pulled Severus in between them and once more visibly created rings for each other. Allowing a blushing and insistent Severus to take them, placing them where they belonged next to the ones he had presented before they turned to face the crowd. Their magic rushed forwards in a brilliant display of color, visibly entwining with each other and around their bodies before bursting into golden fireworks and fading away back into their bodies, hopelessly entangled.

Notes:

Should I end it here? It almost seems fitting and I can do sequels later...

Edit:
Since I'm doing sequels and there have been mentions of wanting to hear about the pregnancy I'll say that this one is done. Thanks for reading!