The Stray.

Nelson and Bart were playing Mortal Kombat X with Bart as Jason and Nelson as Leatherface.

"Ohh Nelson!" Lisa said from behind Bart's closed door in a sing-songy voice. "I want to show you something."

"No girls allowed." Bart said in the same fashion. Nelson punched him in the shoulder.

"Go see what Lisa wants!" He said. Mumbling under his breath, Bart opened the door to reveal Lisa….with a little orange kitten in her arms.

"Whoa!" Bart said. "I thought Mom and Homer fixed Snowball II."

"They did." Lisa replied. "I found this little guy on the street cold and hungry. I named him Firestar after the cat from the Warriors series."

"Lisa. You know Mom and Dad aren't going to let you keep that cat here." Bart said.

"I know." Lisa said. "That's why I decided Nelson should have it."

"Say what now?" Nelson said in shock just as he pulled a fatality on Bart's immobile character.

"Hey! I called time out!" Bart complained.

"Haw Haw! You snooze. You lose." Nelson taunted

"So…will you take the kitten?" Lisa said happily.

"No way! I'm a man Lisa and real men don't take care of kittens."

"Please! I don't know anyone else I could give it to. Milhouse is allergic. Martin hates cats. And Ralph….well he still thinks his bunny rabbit is just sleeping."

"N.O."

Lisa began to tear up as she brought up Firestar to her eye level. "I'm sorry little one. It looks like you'll have to go back to the cold, unforgiving street." Just as Lisa was about to leave, Nelson stopped her.

"Alright! Alright! I'll take the stupid cat." Nelson shouted.

"Oh thank you Nelson!" Lisa shouted as she passed the kitten on to him. It purred and began kneading on Nelson's chest.

"Aww! He's kinda cute." Nelson said. "I think I'll call you, Firestorm!"

"Hey! He already has a name! Firestar remember?" Lisa said.

"No child of mine is going to be named after a book character."

Lisa gasped. "If he's anyone's child, he's mine! Firestar!"

"Firestorm!"

"Firestar!"

"Firestorm!"

"Good grief." Bart said. "Not even in their teens and their already at it like an old couple."