Leanord, Raj, Sheldon, and Howard all quietly walked down the hallway in the physics department when they noticed Kripke and a bunch of the other guys peering into Siebert's office.

"What is everyone looking at?"Leonard asked as he walked up to the group.

"Shut it Hofstadtew, thewe's a hot chick in Siebewts office."Kripke said in his usual accent.

The three leaned into the office and saw Siebert talking to a woman. Her back was turned so her face wasn't able to be seen. The woman was wearing a short dress, that was strapless, and red until it got to her waist, the bottom of the dress had mulit colored stripes, featuring Batman and his enemies. Her tights were black until just above her knees, where crosses bled out into the black. Her outfit was accented with bright red tall heels.

"She wikes comics and hew body is to die fow."Barry sighed a little as he stared at her. "Wooks wike Siebewts putting the moves on hew."

The woman laughed causing Howard's eyes to widen.

"Stop looking at her, you dogs."Howard said, just as the woman turned around, reveling herself to be McKayla.

"Wow thewe Wolowitz, youwe getting mawied."Kripke glared at Howard as McKayla walked out of the office.

"Oh hey Howie, Leonard, Rajesh, Sheldon." She smiled happily at the two she was familiar with, as the other men turned to stare at them.

"Guys, this is my sister."Howard sighed as the other men laughed in disbelief.

"It is true, Howie is my older brother. Now if you'll excuse me boys I have some paper work to do."McKayla smiled as she opened the door Kripke was blocking. The name outside the door clearly read Dr. McKayla Wolowitz, Pyhsics Department Coordination. Theoretical Physics Ph.D.

"So she really does work here."Sheldon shrugged before walking to his office.

Later that day McKayla smiled as she knocked on Sheldon's office door. When she heard him answer she walked in.

"Oh McKayla, nice to see you."Sheldon smiled before going back to his work.

"I just wanted to drop off your request papers, to start your new experiement I approved them all."McKayla smiled as he took the papers from her.

"It's about time for me to go lunch, I was wondering if you would like to eat lunch with Dr. Hofstadter, Dr. Kuthrapolie and Wolowitz."Sheldon glanced at McKayla as she pondered the offer.

"Of course Sheldon, I would love to."McKayla grinned as he started walking towards the cafeteria.

McKayla smiled as she sat at the table with the guys. Raj eyes her warily when she sat across from him.

"I know Raj, you have selective mutism, if I mkae you uncomfortable I can leave."McKayla smiled sweetly as Sheldon glared at Raj.

"No McKayla, stay please."Sheldon practically begged, causing the others to almost choke on their food.

"It's fine Sheldon I don't mind eating alone."McKayla laughed when Raj shook his head signalling he didn't want her to leave.

"So McKayla how come we've never really heard about you before?"Leonard smiled at the woman.

"Oh I'm always working so I've never visited. I normally only see Howie on the holidays, but lately I've started visiting more frequently. Mother finally got over being mad about me not following her religion, but since I'm her baby she doesn't care anymore."She smiled as she sipped on her soda and ate her salad.

"Kai seems like he's a very smart child for his age."Leonard took a bite of his food and shrugged.

"They say he may be a prodigy. He acts older than his age, but he's still a little boy."McKayla smiled proudly as she thought of her son. "He doesn't know the reality of what happened to his father, he doesn't register that there is no father figure. I've tried dating, but most men hate children, or they are dumber than a bag of rocks."She smiled sweetly as Howard laughed.

"Yes, I've had the pleasure of meeting some of your rock men."McKayla elbowed him before glanced at her phone for the time and sighed.

"I need to go call the daycare and make sure Kai has taken his medicine for today."McKayla excused herseld and walked away from the table.

"She's so nice Howard."Raj sighed contendedly as he stared after the woman.

"So Bernie said the girls are all going out Thursday night and she asked us to go, since it is anything can happen Thursday I said yes."Howard smiled as Leonard and Raj agreed. Sheldon scoffed.

"No thank you I will sit at home with my computer instead."

McKayla smiled at the group as she sat down. "No thank you?"

"Leonard, Raj and I are going to the bar with you guys Thursday night."Hpward explained as McKayla smiled. "Ooh great."

McKayla laughed as she walked with Kai up the stairs of the apartment. Kai had decided he wanted to be Iron Man today, so he was currently wearing his Iron Man costume.

"Momma can we go to the comic book store tonight? Please?"Kai whined as McKayla smiled.

"Baby it's already seven thirty."McKayls glanced at her phone as she stood on the stairs, she had worked late tonight so they were on their way up, after having just stopped at a Mcdonalds. Kai sighed and nodded agreeing with his mother.

"You know what, yeah let's go."McKayla smiled down at Kai's beaming face as he ran back down the stairs.

Sheldon and Leonard were fighting over a comic when Stuart walked over to talk about new comics.

" Hey that's McKayla."Leonard smiled as he watched Kai run to the batman section.

"Don't run Kai, you might trip again." McKayla scolded him as she began looking at some of the art work that was available for purchase.

"Do you come in here a lot?"Sheldon asked McKayla when she walked closer to him.

"At least once a week, Kai loves his comic books."McKayla smiled as Kai walked over to hand her three books, before wandering off again. "So, there's no way you will rathink going out with all of us tomorrow night?"

"No, I do not party, or dance, or drink alcohol. When I moved to California I promised my mother I wouldn't do drugs."Sheldon shook his head as McKayla laughed.

"Well okay then, but anyways it's Kai's bed time, so I'm going to pay for these and leave. I'll see you around Sheldon."McKayla smiled as she picked up Kai and walked to Stuart.