I would like to thank Unknown Being for reviewing this story and telling me about another Unknown Sibling. This is different than the other three since he didn't die. This is about "Other Brother" in a cutaway gag in "Brian's Play" when Chris is stuck in the seat and there's another guy in the same situation. The guy says the Lois won't come back because she didn't for him. This states she is also his mother. I'll make a name for him to make this easier.
John's POV
My name is John Anthony Griffin. I was the Griffin's first child. I was an accident though. The condom broke and I was born 9 months later. Growing up they were good parents. When I was 13 I was a little overweight for my age and got stuck in the theater seat. Lois said that she would be back with a blanket and food, but she never came back. Many years passed and I was still stuck in the seat. Anyone who saw me did give me food, but they couldn't get me out. Then I saw her again with a son. She told him the same story that she'd be back for him. "She won't be back." I said. "Why not?" Chris asked. "She never came back for me." I said. About 20 minutes later Lois did come back for him. She looked at me but didn't say anything. "Hey." I said. Lois looked at me again. "John?" She asked. "You do recognize me…" I said. "Yea I do." She said. "Would you mind helping me out of here?" I asked after she got Chris out. "Sure…" She said while pulling me out. Chris helped her pull me out. Then I was free. "Thanks mom." I said while walking away. After that I left the theater for the first time in 10 years. I felt good, but sad that I would never see them again. When I was crossing the street a drunk driver ran me over. Now I'm with the others who were forgotten.
Yea I had to have him die since he is never mentioned again. If you see any more Unknown Siblings let me know in a review. I just noticed it and decided to do it. X3