Time and love don't mix

What happend? Why is stuff so weird?

The day after the battle Harry and Cassia decided to go to Grimmauld Place No 12, because she had insisted on it. Remus, Ginny, Hermione and Ron would accompany them.

They silently ate breakfast at the Burrow, where Tonks and Teddy were staying too. Cassia had fallen in love with the little boy the second she saw him and couldn't stop playing with him, when he was bored.

"What is that ring and the neclace you're wearing by the way? You haven't taken them off sice you returned.", Harry asked. "They're presents.", his sister just said defensively. Remus chuckled. Everyone gave him questioning looks, but he only turned to Cassia. "You're a lot like him. He never took the bracelet off, except for battles. He was too scared of losing it.", he explained to her. She smiled sadly.

Everyone asked who he was talking about, but the werewolf wisely kept his mouth shut and told everyone it was Cassia's story to tell, when she was ready to and everyone left it at that, because they figured it had something to do with her disappearance and she obviously wasn't ready to talk about it.

They apparated to Sirius' old house and went in. Cassia went directly to his room, Remus and Harry following her. Hermione and Ron had started to chat with Kreacher in the meanwhile, who had returned to his home after the battle was won.

Cassia looked at Sirius' mess of a room. She knew that Snape had been in there, but it still seemed like the kind of order the Black would have. She chukled slightly at that thought.

She looked at the pictures on his walls, most of them were from before he ran away. On his nightstand was a little locked red box. Cassia took it and inspected it. There was no way of opening it. Questioning, she looked at Remus. "He told me it could be opened with the ring of the Black family or with a specific spell.", the man just said. Harry stood in the doorway, looking at his sister and former teacher confused, why they were so close.

What confused him even more, was that Cassia held her ring against the lock and it opened with a 'click'.

The readhead looked inside and found a small model of Sirius' motorbike, a nearly perfect drawing of him on his motorbike, a letter and his bracelet.

Cassia started to cry again and took out the letter.

Dear Cass,

I hope everything went smoothly when you returned back to your time.
I miss you more and more everyday. It's the nineteenth of August, 1979. You were born yesterday, which is weird to think about. James and Lily wanted to make me your godfather, but I thought it would make our relationship even weirder. That's why I told them, that I was honored, but not quite ready for the responsibility.
I'll put everything you gave to me (except the bracelet) into this box, that way it won't be damaged. I still am very chaotic. But without you and Marlene it's not nearly as chaotic as I used to be.
I love you
Sirius

P.S.(1996): We're going into the Department of Mysteries now, I wanted to write this in case I die. You were right about Reg, I think.
I took off the bracelet for the first time in years. I hope you'll get it if I die. It means a lot to me. I still mean the words on your necklace and I read the words on my bracelet every day.
I love you, Cass. Stay safe.

Cassia was crying so much, she couldn't even see anything. She had sat down onto Sirius' dusty bed and Remus sat next to her and put an arm around her, comforting her.

Harry had immediately went over to them as well and hugged his sister. He couldn't read the letter, which Cassia had clutched to her chest, but he could see the drawing, the model and the bracelet.

After a few minutes, Cassia asked Harry and Remus to leave her alone. Harry hesitated, but when he saw that Remus instantly left the room, he decided to do too. Remus and Cassia seemed to have gotten closer while she had been away. "If you need to talk, I'm here.", he told her before he left.

Two months went by and Cassia had told no one where she'd been.
Harry was worried for her and tried to make her talk to him, but when she wasn't helping to rebuild Hogwarts, she locked herself in Sirius' room and Kreacher brought her food.

Cassia hadn't had her period in two months, the first one she thought nothing of it. Sometimes it would skip a month and time travel could've messed with her biology.
But in the second month, she got worried.
She had asked Kreacher to buy her a pregnancy test, just to be sure.

The result was positive.

Cassia didn't know what to do and therefore visited the only person who she wouldn't have to explain much to: Remus.

She had sent him a letter, asking if he could explain to Tonks what happened and apparated to their cottage.

"What happened and why is the time travelling important?", Remus asked Cassia. They sat in the small living room, Remus, Tonks and Teddy on the sofa and Cassia in an armchair.
Tonks seemed to have processed the time travel-stuff fairly well and didn't ask Cassia any questions, though it was obvious that she wanted to know more.

"I- I'm pregnant.", she told them.
Both looked at her in shock.
"I don't know what to do! I'm way too young, but it's Sirius'! And it's still my child! I can't just... kill it!"
"Calm down.", Tonks told her kindly. "It may be irritating now, but everything will clear up. Whatever decision you make, we'll support you. I know, it's a difficult decision and it shouldn't be made on one day." "If you want, you can stay with us for a while and decide here, away from Sirius' room. I'm sure he'd want you to really think about it without too many emotions getting in the way.", they offered.