"I know we don't talk about dog years but I wish you could have waited to see how talented you were until I was gone. By the time I'm dead you won't even be 10, you'll have 70 more years to be good. I just wish I had 5 to be good."
5 years later
"Brian please don't go. I love you."
Brian's life support flatlines
"AAAAAAAHHHHHH"
Stewie eyes flew open and he sat up on his crib panting in fear from his horrible nightmare, ever since hearing those words from Brian at New York it was like a knife went through his heart. Brian was right, Stewie would lose him at a very young age. Whats worse is that Stewie never had the heart to tell Brian how he truly felt about him, he did'nt know when it happened but one day just out of the blue he suddenly fell in love with Brian. But he was too afraid of what would happen if he confessed his feelings, would Brian reject him or freak out and stop being friends with him. Stewie just couldn't risk it, he tried flirting with him and hitting on him hoping that Brian would catch his drift but nothing seems to be working. So far Stewie just tried settling with being his friend but as each day passes he had this overwhelming urge to tell Brian about how he left grew stronger and he might not be able to hold it back much longer, even if he did manage to have Brian his happiness will be short lived since Stewie would lose him when he turns 6. So that's why ever since New York he has been working on a project to prolong Brian's lifespan of that of a human, that way Stewie could have him for the rest of his life, and thank god its close to finished because its almost Brian's birthday. Maybe if Stewie gave his formula to Brian maybe he would realise how much he cares about him and may return his love, Stewie could only hope at this point.
1 week later
The entire neighborhood is at the Griffins celebrating Brian's 9th birthday (well except for Quagmire for obvious reasons), and everybody seems to be having a good time. But something was bothering Brian, Stewie was his best friend so why isn't he downstairs celebrating with him? Stewie's been in his room for the entire day, Brian could just go upstairs and check up on him but that would be rude the the people downstairs.
"Maybe I'll go check up on him after the party"
9:00pm
The party is over and everybody seems to have gone home, now seems like an appropriate time to check up on Stewie. Brian walks up to Stewie's door and knocks 3 times.
"Stewie, are you in there?"
He got no response, he tried knocking again. Still no response, he pressed his ear on the door to hear if Stewie's inside. But all he could hear was sniffling and sobbing, Brian was confused so he slowly opened the door and peaked his head in.
"Stewie?"
He could see Stewie sitting on the floor with his back turned at him.
"Has he been crying all day?"
"Stewie. Is everything all right?"
Stewie turned his head and saw Brian standing behind him. He just got up and hugged Brian tightly and buried his face in his chest.
"Oh Brian"
"Stewie whats the matter?"
"Its your birthday is whats the matter. Brian, your getting old. Your 9 years old and now you have at least 4 more years to live. By the time you reach those 4 years I would have been 6 and you would have been gone. And for the rest of my life I would never see you again."
Stewie hugged Brian even tighter and started crying wetting his fur. This tugged at his heart strings, all he could do is rub his back in an effort to comfort him.
"I'm sorry Stewie but there's nothing we could do about that."
"Yes there is Brian."
Stewie pulled away from the hug and pulled out a syringe from his pocket.
"I've been working on this for a long time. This will stop your aging by the time I reach 9, I'd prefer if we were the same age. This will also alter your DNA making you part human, effectively giving you the lifespan of a human."
Brians eyes widened. He couldn't believe what Stewie was giving to him.
"Stewie. I don't know what to say. This is such a big deal for me, I don't know how to thank you."
Stewie stepped closer to Brian and inched his face forward.
"Well there is 1 way you could"
Stewie closed the gap and gave Brian a kiss. This freaked out Brian, he just pushed Stewie away in shock. Stewie fell to the ground with a shocked face. How could Brian do that to him after everything he's giving to him?
"Oh why do I even bother?"
"What was that?"
"Never mind, you don't get my serum anymore"
"What? Why?"
"BECAUSE I LOVE YOU DAMN IT"
Brian just stood there frozen. Did Stewie just say that he loved him?
"Brian. I have been in love with you for a long time, I would have told you I did but I was too afraid I would scare you and you'd stop being friends with me. I tried hitting on you, flirting with you hoping that you'd get it. But you never did, so I thought maybe giving this serum might help you realise that I love you and you'd return my love. But never mind, maybe I should just let you die because you'll never love me the way I do."
Stewie threw the syringe on the ground in anger and it bounced and rolled at Brians feet. Brian picked up the syringe and stared at it. Brian has been looking for "the one" for who knows how long and every girl he's dated has turned him down. But Stewie seems like he could be his one, no one has ever loved him as much as he did. But it was wrong, he wasn't gay and it wouldn't be fair to Stewie. But this will be his last chance of happiness and he just threw it away, maybe he should at least give this relationship a shot and maybe he might grow into it. Also he owes Stewie, not only has he worked hard for this but he also never payed Stewie back for saving him from a car. A Stewie from a timeline where Brian died had traveled back in time to save him the the accident that killed him the the first place and he didn't do anything to thank him in return. Sure he went inside his dreams and killed the monster that was tormenting Stewie in his nightmares but how does that compare to saving his life. He's been taking Stewie for granted despite everything he's done for him.
"'Sigh'. OK I'll do it"
"What?"
"I'll give this relationship a shot."
"Really? Why the sudden change of heart?"
"Remember that gift I gave you for Christmas?"
"Yeah. That photo of us. You told me you given me the greatest gift of all. I still don't get what you meant by that."
"Well many months before that another you saved me from a car accident and saved my life. He explained that he came from an alternate timeline where I died and he traveled back in time to save me, and I never did thank you back somehow so maybe..."
Stewie's eyes started to tear up again, he hugged Brian again and buried his face in his chest.
"Oh Brian I'm so sorry for shouting at you, please don't leave me again."
Brian did all he could to comfort Stewie. He kneeled down and returned the hug while rubbing his spine.
"Shh shh shhh. Its OK, I'm here right now. Thats all that matters, look I'll take the serum and give our relationship a shot. Its the least I can do."
"'Sniff sniff'. Thank you Brian"
Stewie took the syringe out of Brians hand and jammed it into Brians shoulder. After taking the serum Brian started to feel really queasy and weak.
"Uugh. Stewie I don't feel so good"
"Its OK that's normal. That's just the serum taking effect, right now its coursing thorugh your veins and altering your DNA. It'll pass."
Brian collapsed to the floor clenching his stomach in pain.
"Oooohhh, Stewie"
Stewie put his finger on Brians lips
"Shhh its OK Brian. Your new boyfriend Stewie is going to take good care of you."
Stewie dragged Brian onto his crib and placed a blanket over him. He then began to undress himself until he was in his diaper.
"Uhh Stewie what are you doing?"
"Nothing. I just like your fur".
Stewie then went to lie next to Brian snuggling in his fur. Stewie always loved Brian's fur and he always savored it whenever he and Brian hugged, his fur was so warm and soft and fluffy and was the most comfortable thing he ever felt. Brian felt his heart swell, no one has never liked his fur before. He then wrapped his arms around Stewie and embraced him tightly as they drifted of to sleep.