AN: In the authors note I originally wrote there was an explanation on how I made their birthdays but then I realized it ending up being like 2 paragraphs of me babbling. So let's keep this short, Sirius is the oldest, Peter is next then it's Remus and James (since James and Remus are the only ones we have specific dates for, we should really bug JKR about Peters and Sirius's birthdays). It's based off canon and what I made up.

Who's Birthday Now

Harry Ron and Hermione walked into the Gryffindor common room dolefully; classes were over for the day and he was exhausted. He looked up just in time to see a box of Bertie Bots Every Flavor Beans fly from the sofa to the armchair. After taking a few more steps he saw Sirius seated in the sofa with Remus beside him and James sitting in the armchair untying the neatly done ribbon at the top. Peter was sitting on the ground cross-legged and leaning up against the sofa with a few chocolate frogs in his lap, they too were donned with ribbon.

"What's going on?" Harry asked curiously, seeing the bow that was taped to James's head.

The four turned around, three were startled to see him there, Remus on the other hand had heard him come in. Sirius abruptly turned to him and gave him a hard elbow in the ribs.

"Your job was simple, tell them when you hear and or smell them coming." He scolded.

"Sorry," Remus shrugged. "The box was already in the air when they walked through the door; they'd have to be blind not to see it, and besides Prongs has a bloody bow on his head, not too discreet."

"They're out of class early." Peter defended him. "They shouldn't be here for another fifteen minutes, at least."

"Ha, see, not my fault I wasn't expecting it."

"We had an exam today so we were let out once we finished, Hermione waited for us of course, so, what's going on?" Ron repeated raising an eyebrow as he spoke for the whole group.

"Is it your birthday?" Hermione smiled working her way around the sofa to sit beside them. When she got around she spotted a couple more gifts, one of them was clearly from Dumbledore, she could see the handwriting on the note attached to it.

"I told you we should have done this in the dorm." Sirius hissed.

"I as recall," Remus began. "I was the one who said that. You got me to skip class for this? I'd make you do my homework for the next month as punishment but you'd only bring my grade down. I can't believe I listened to you, oh just skip for one period we can do it then, see we're getting caught anyway."

"You're right, mate, I'm sorry we should have gone up to the dorm like we did for you, but I honestly thought no one would be in here."

"Could someone please explain this to us?" Harry asked still standing behind the sofa with Ron, Hermione was busy reading the cards.

"It's James's birthday." She grinned before any of them could ask. "His eighteenth to be precise."

"How come you never said anything?" Harry asked feeling disappointed he wouldn't share his birthday with any of them, especially him.

James shrugged. "We thought it might be weird, not only from the whole time travel perspective but you've been busy with Snivillus and those dreams you've been having we just didn't think – "

"Obviously not!" Hermione cried still with a smile on her face. "With everything that's been going on Harry could use some fun! Now tell me, I didn't miss what you said, Sirius, has Remus's birthday already past?"

"Two or three weeks ago… on the tenth." He replied.

"So you're eighteen too! Hold on, from what I've discovered from your elder counter parts you Sirius are older than Remus. You're eighteen too! And Peter?"

"I confess." He nodded. "A few months ago."

Harry smiled, his father was the youngest of his friends, just like he was.

"This is just uncalled for," Hermione said smacking him on the arm. "We have four birthdays to celebrate, six if you count Lupin and Black, oh! I should owl them! We'll have a little party."

"How do you expect to pull this off?" James asked.

"He's right," Remus agreed. "Black can't exactly come here and as much as I love to piss Umbridge off having Lupin walk in here would only cause more trouble that we don't need."

Hermione looked dejected. "You're right, well; perhaps we could go to Number Twelve."

"Hermione," Harry began leaning heavily on the back of the sofa. "How do you propose we go about doing that? I mean all of us at once? Maybe we could get one or two of us to leave school but unless there's some sort of major family crisis that would involve all of us I dare say we're trapped here, until Easter break that is."

"Well then, it seems we'll just have to come up with some family emergency," Hermione concluding standing up and brushing off her robes. "We've broken the rules before; I think we could do it again."

The men exchanged worried glances. "Hermione," Ron began. "Are you feeling okay?"

"Never better, Ronald, now all of you come along, we're going to Dumbledore to devise a false family emergency that involves all of us."

"What exactly would that be?" Sirius asked propelling himself off the sofa to follow him out the portrait door along with the rest of them.

"I'm sure we'll think of something." She smirked and pushed the door open. The whole way to Dumbledore's office they came up with various ideas of how they could get out of class for the next few hours. They even mused on different ideas when they reached the gargoyle and guessed the password, even as they made their way up the steps they came up with several ideas, though they got the more ridiculous as they went.

Finally they knocked on the door that led to the office, falling silent. They heard a soft come in from inside the office and the door swung open seemingly on its own accord.

As they piled into the office Dumbledore looked up from his desk and gave them all a pleasant smile. "Well, good evening, what is it I can do for you? And may I add, happy birthday, James."

James blushed as Hermione began to speak. "That's what we've come to talk to you about, Sir. You see, it seems all of them had gotten by without telling me, Harry or Ronald of their birthdays, if we would have known I would think a little celebration was in order. Since we've missed them all except for James' I think we should have something of a larger celebration including Black and Lupin if you don't mind, just because you're not a child anymore doesn't mean you can't have a party, does it?"

Dumbledore smiled and moved out from behind his desk. "I couldn't agree with you more, Ms. Granger, I recall having been told by the boys to keep their birthdays a secret myself, I was quite confused with them. I truly don't see any reason you shouldn't be allowed to visit Number Twelve for a few hours or so."

"What will we tell Umbridge though, she knows whenever there's a floo network opening in this school." Hermione furrowed her brow in confusion.

"I don't see how it's any of her business where I go with some of my students but if she does inquire, we'll tell her," Dumbledore said firing up the floo network. "That we're attending a party."

Every single Gryffindor were taken back in surprise, they were going to tell her the truth? That seemed rather anti-climatic, they sort of wanted to lie and play her like a fool.

"Oh," Sirius said. "Okay, let's go."

Dumbledore motioned for them to go ahead of them and one by one each student went in the floo network and passed through to Number Twelve. Before Dumbledore went he wrote a note, one of them he sent to McGonagall via Fawks who was sitting on his perch, after that he began his own floo travel but he did not go to Number Twelve by far.

Over at Number Twelve Grimmauld Place Lupin and Black were sitting in the kitchen alone, completely unaware that at the moment seven young Gryffindors were being transported to the living room. Of course Lupin was the first to pick up the transaction; Black could almost see his ears perk up.

"What's up?" He asked.

"Someone's using the floo," Lupin murmured. "Make that several someone's."

"Not everyone has access to that."

"Dumbledore's office does." Lupin pointed out.

Black furrowed his brow, what did Dumbledore want? He quickly got up, followed by Lupin and the pair walked into the living room. They were a bit shocked to see the seven teenagers standing idly in the room waiting for the last of them to make it through the network.

"This is certainly a surprise!" Black said stepping forward with a smile.

"You don't know the occasion?" James asked taking a step forward.

Black shook his head and looked down at the drink he was still holding in his hand. "Oh I know the occasion, all right. In fact," he motioned to Lupin. "We're drinking to it."

Lupin nodded and lifted his drink in the air quickly before taking sip. "So, should we assume this is what we owe the pleasure too?"

"Of course," Hermione said stepping past the men surrounding her. "However I must say I am quite upset to find out your birthday was only a couple weeks ago and you failed to notify me of it."

"Oooooo," Black said with a grin. "You're in trouble," he drawled.

"Don't get ahead of yourself, Sirius," Hermione said holding up her hand. "I happen to know your birthday was a few months ago and still I had no idea. Everyone here is in trouble, except for Harry and Ronald that is."

Ron and Harry exchanged smiles that they were free from the wrath of Hermione.

Behind them there was a knock at the door and the portrait of Mrs. Black started up in a symphony of shrieks and cries. Sirius covered his ears and moaned. "Urg, I thought I had gotten away from that noise."

"I thought I was done with it once I was in Azkaban," Black retorted as Lupin and a few others went to take care of the portrait and answer the door. "Obviously I was wrong."

Seconds later the group returned with not only Dumbledore but Molly and Arthur Weasley behind them. Molly squeals when she saw them and proceeded to give everyone a warm hug. "Oh! It's wonderful to see you all again, but shame on you!" She cried slapping Black lightly on the chest. "You should know better than to keep such secrets from me."

Black was befuddled. "B – but blame him!" he pointed to James. "It's his birthday!"

"But you are the oldest and therefore should be the more responsible."

He pointed to Lupin. "Moony's as old as me, blame him!"

"Not only is that a lie, you're older, but he actually had the common sense to tell me when I asked him some years ago. He's just stubborn when I try to throw him a party, he's refused every year."

"And I will continue to refuse." Lupin said walking back in the kitchen. "There's no need to fuss over me."

"That's a lie and you know it!" She accused, following him.

Once again they were blessed with more visitors in the house when the floo network came to life one more. This home however McGonagall stepped through, followed by a pair of familiar red haired twins accompanied by their only sister.

"Ginny, Fred, George!" Their father said ruffling each boy's hair and giving Ginny a kiss on the head. "Good to see you!"

"Hi, dad! You should have seen Professor McGonagall we had detention with Snape today." Fred began.

"She got us right out of it!" George said with a wide grin. "Though, we have to go back tomorrow to make up for today."

"Of course you do," she said heading into the kitchen where she was well aware Molly was. "Now if it was Umbridge, then maybe I would allow you some leeway." She murmured.

"Yeah," Fred agreed. "Her detentions are wicked painful, mate."

"What have you done this time to earn detention?" Arthur asking looking up to make sure Molly wasn't overhearing.

"They made Professor Snape out to be a fool." Ginny smirked. "They faked a potion and he actually thought it was genuine until, of course, he tried it out. As I hear from Sirius it was funny, but he took fifty points from Gryffindor for the stunt." She glared at her brothers as she went past them to find their mother.

"It was funny," Sirius confirmed being the only other one in the room who was taking the seventh year potions class. "I couldn't have done it better myself."

"We find that hard to believe." George laughed.

"You're a bad influence on our boys," Arthur scolded with a smirk, remembering the time he spent with them in Hogwarts. It was only a year but the four Marauders weren't exactly people you forget easily, especially since James and his parents were well acquainted with the Weasley family. Sirius's not so much, being the stuck up pure bloods they were.

James shrugged. "I'd like to take that as a compliment, so I will."

Arthur huffed a laugh as he and the others walked into the kitchen to see his wife hurriedly baking a cake with Lupin leaning against the counter watching her still drinking from his glass. "I offered to help her," he said shrugging. "But she said I'd mess it up."

Molly placed her hands on her hips as the frosting stirred itself in the bowl. "I never said such a thing don't put words in my mouth, I said you would end up tainting it."

"With what?" Black asked with an amused smile.

Lupin's gaze dropped down to the amber liquor in his glass and then back up at Black who began laughing.

"You're baking a cake?" Hermione asked as she watching the frosting stir. "Have you got the time?"

"With magic I can cut the time in half at the least," Molly explained as she poured the batter in a pan. "I would prefer to make it magic free but since this is so short notice it doesn't look like I have a choice."

Black headed over to the fridge and grabbed the bottle of, what they assumed was, fire whiskey and poured it into quite a few glasses handing it out to people including the four Marauders and Fred and George.

Molly saw this and raised her brow. "Excuse me, I don't think I like this one bit."

"We're all eighteen here." Black said with a smile.

She shook her head, "The first of April those boys will be eighteen, as of right now they are still seventeen."

Black looked stunned for a moment on the one hand he wanted to argue with Molly but he knew no matter what he said he was going to lose this argument. Thankfully for him though Fred and George stepped in.

"C'mon, mum, it's a party." Fred cried.

"Yeah and we're seventeen, we're legal."

She stared at the glasses and with one fluid motion poured half their contents into Black and Lupin's glasses making Black smile uncontrollable and Lupin to smirk. "Only a little." She glared and the twins looked at each other in amazement.

The Marauders were already tackling their own glasses what with no parental figure other then Molly to stop them and she was busy with the twins. But as they began to walk out of the kitchen they heard the shrill voice of Molly behind them. "And where do you think you boys are going? I will let you have some, but that is far too much for someone so young."

They look shocked.

"Aw, Molly," Sirius grinned trying to use his charm on her but to no avail. "We're eighteen, we're adults, and we're past being adults. Besides this is nothing compared to what we kept in our old dorm…" he trailed off realizing what he was saying.

"Smooth." Remus commented as he took a drink.

"You've really done it this time, Pads." James said shaking his head.

"What do you keep in your dorm?" Molly asked.

"Yes," Minerva agreed folding her arms across her chest. "Exactly what is it you keep under your beds in your dorm?"

"No," Sirius began denying. "No, no, no, not here I mean back home in the seventies. And you know the seventies, mate; everyone had liquor under their beds. Hell, go to the girls dorms and you'd find some of the hardest liquor you've ever had! Sure we had some good stuff but over there it was a bloody madhouse!"

"Padfoot," Peter warned shaking his head.

Sirius looked at him.

"You are so not making this better." James sighed and Sirius turned to him.

"No, but, I'm just explaining – "

"Well stop explaining." Remus cried with a big smile spread across his face, he was finding the whole situation amusing beyond belief.

The two adult Marauders leaning on the counter were giggling as well, they remember better than anyone the trouble they got into in school they also remembered the parties that were thrown in their dorms. Not only the dorms too, countless parties were thrown out on the lake or the Quidditch pitch, Hogwarts was insane in those days, or that could just be because they knew the right people the parties could be selective at times.

"You think we should intervene?" Lupin asked leaning over to talk to Black in private. "After all, it is our hides that will get a beating later, eventually they will have to go back to their own time where the Minerva and Molly there don't yet know of the stash."

Black shook his head. "No, not yet, when they're gone we'll probably get it but until then it's all on them."

Lupin grinned and nodded. "Alright then, so, happy belated birthday Padfoot," he said raising his glass.

"Happy belated birthday, Moony," Black retorted and he clinked glasses. "And happy birthday, Prongs!" He cried to the boys who were still trying to get Sirius to stop talking.

There was another ring of the doorbell and they vaguely saw Arthur out of the corner of his eye go to the front door with Dumbledore by his side, one to answer the door and the other to close the now screaming portrait.

The second the door open they heard a yell echo through the house.

"So who the hell else, is so ready to party!?" Yelled out a voice which was nearly quivering with bridled enthusiasm.

"Andy's here," Lupin said bringing his glass up.

"Now this party will get interesting." Black snorted.

They then heard another voice, a more calming one trying to settle her friend down in vain.

"So is Laura," Black said. "Now we can have full confidence Andy will keep her top on during this party, sad news for you then, isn't it?"

Lupin promptly punched him in the arm. "Shut up, Padfoot."