A/N: Wow, two chapters in one night. I'm on a roll :)
As they spent more time together, McGee slowly started to recover the feeling of pure happiness that his parents had dispelled, and he got a taste of what life with Abby would be like. She constantly surprised him; with little things, like the massive amount of Caf-Pow! she had stored away in her refrigerator, and with big things as well. The biggest thing she surprised him with was her decision to take his last name.
"You're sure about that?" he asked after she told him what she'd decided. He hadn't pressed her at all, hadn't even really thought about it. If he had, he would have assumed that she was keeping her own last name.
"I'm sure, McGee." She quickly entered a qualification. "I'll still use Scuito for papers and stuff, because my professional reputation's tied to it, but for everything else I'll take your name."
...
They returned to McGee's apartment the following night, knowing that Jethro had to be fed and walked, and were surprised to find that his parents were nowhere to be found. For a moment, McGee felt a pang that they'd come this far to see him and he wasn't spending any time with them. But then he remembered his mother's reaction to their marriage, and stopped feeling guilty.
...
McGee didn't have any contact with his family for the rest of the weekend, partly due to being so preoccupied with Abby. And partly due to his anger at his mother's reaction to his marriage. She hadn't given them a chance at all, and it irked him.
So he was surprised to see a tall, familiar figure crossing the bullpen just before lunch on Monday. He got up from his desk to greet him
"Dad... What are you doing here?"
"I came to talk to you. Is there somewhere we can get lunch around here?" He looked around, a small smile on his face as he noticed the interest Tony and Ziva were trying to hide. "And bring your wife."
...
Tony watched curiously as the stranger exited the elevator and walked towards the bullpen. There was something unusual about him, a strange familiarity. As he drew level with Tony's desk, he realised what it was; the man looked like a slightly taller, older version of McGee, right down to the green eyes. It was clear who McGee took after. He tried to overhear what was being said, without appearing to eavesdrop. At the mention of McGee's wife, he gasped, quickly trying to cover it as a cough. So McGee had introduced Abby to his parents- as his wife? That could only mean one thing. Abandoning his plans to get lunch at one of the local cafes, he ducked out quickly to get takeout and settled down to eat at his desk. He wanted to be able to question McGee when he got back.
...
He watched the elevator like a hawk, waiting for McGee to come back from lunch. By sheer luck, when he returned there was no sign of Gibbs. Tony barely waited for him to make it past the edge of the cubicle before he pounced.
"So. How does Abby like her in-laws?"
McGee froze. "What do you mean, in-laws?" he asked cautiously.
Over McGee's shoulder, Tony saw Ziva get up from her desk and come to stand behind McGee.
"Your parents, McObtuse. If you two are staying married, they're her in-laws now."
"Who said we're staying married?"
"Oh come on, Tim, I heard your Dad call her your wife."
"We both did" Ziva put in.
"So?"
"So, if you introduced her as your wife, you must be staying married, right?"