Jislane asked for an Aliens inspired fic. I hope this satisfies. ;)
:The Egg:
Penny practically skipped up the steps with the package from the Fed-Ex guy. This was going to be the biggest birthday surprise ever for one Leonard Hofstadter. She unlocked her door and hurried inside. She threw her coat down on the couch and grabbed a pair if scissors to open the package with. She opened the brown bag and peered inside.
Ewww! Was it supposed to look like that? Penny grabbed her laptop and googled the item. "Huh," she mumbled. "I guess so. Well, it's not like I have to look at it long. And that's all that matters."
Penny wrapped it up in Star Wars paper, and added a bright green bow on top. An hour later she heard her guys walking up the steps, so she slipped into the hall behind them and followed them into 4A.
"Good afternoon, Penny," Sheldon said, hanging up his jacket.
She smiled a greeting at him. Then she turned to Leonard and held out the gift. "Happy birthday, Leonard! I know you said no party, but you never said no gift!"
Leonard smiled broadly and took the box. He set it down on the coffee and hugged Penny tightly. Penny smiled with anticipation and hugged him back.
Leonard peeled off the paper and opened the box. His eyes got really wide and he looked at her in surprise. "Is this what I think it is?"
Sheldon stepped forward to look, but Penny grabbed his arm and pulled him over beside her. "I know a guy who works for the special effects company that did those movies," she said. "He guaranteed that it's authentic."
Sheldon glared at her hand on his arm, but Penny kept a tight grip on him. Leonard reached into the box and pulled out a greenish slimy egg. Sheldon's jaw dropped.
"A Xenomorph egg replica!" he said in awe.
Suddenly the thing popped open and a tentacle shot out and wrapped around Leonard's neck. Sheldon shrieked and grabbed onto Penny. In only seconds the hugger was wrapped tight around Leonard's face due to his lack of upper body strength for fighting it off. Penny smiled smugly as Leonard slipped into a xeno-induced coma.
Sheldon trembled and grabbed for his phone. Penny took it from his nerveless fingers and shoved it in her pocket. He looked at her in shock. "Penny! What are you doing! We have to get him help!"
Penny shrugged. "I told him it was authentic. As many times as he's watched those movies, he should have known better than to touch it."
Sheldon's mind suddenly focused on Penny like a laser. "You knew it would do this," he said in horror.
Penny's eyes turned cold as ice. "He also should have known I'd kill him if he ever cheated on me." Penny turned to Sheldon. "By the way, you're gonna need a new assistant. I fed yours to the meat grinder in the cafeteria. I'd avoid the chili tomorrow if I was you."
Penny turned and walked out of the apartment calmly. Sheldon looked at Leonard and then back at Penny's apartment. "And they worried about me turning evil," he said as he went about setting up for Halo night.