A/N: Part Two of the impromptu "finding true love and happiness" trilogy.

As Erin and Jay's wedding neared, Mouse decided he and Cati didn't need additional stress in their lives, so one night after he turned out the light and climbed into Cati's bed, he quietly asked her to marry him. As soon as possible. At the courthouse.

Cati readily agreed, her relief evident.

She couldn't believe how lucky she was to have found someone who understood her almost better than herself.

"I think we should find our own place to live, too," she whispered as he pulled her close. She was grateful to her twin for all the support, but she and Greg really needed to strike out on their own.

Mouse concurred. Not to mention the idea of trying to raise a baby under Hank Voight's roof was a little daunting. They needed to make this work on their own terms.

"Permission to take the day off," Cati asked her boss as they sat at the kitchen table during breakfast.

Hank gave his sister-in-law a once over and then glanced at Mouse who did his best not to flinch under his former boss' gaze.

"Everything OK?" Hank asked as he sipped his coffee.

"Just need to take care of a few things," Cati honestly answered, refraining from reaching for Greg's hand.

"Hmmmm," Hank said, looking back at her. "Sure. I think we can handle one day without your technical expertise."

"What can we handle?" Cali asked as she walked into the kitchen, giving her husband a quick peck on the cheek before heading for the coffee pot.

"Hank is giving me the day off to do a few things," Cati answered her twin, flashing a smile. Mouse hid his own and focused on shoving toast in his mouth.

"Is my nephew OK?" Cali asked concerned, rounding back and glancing at Cati's burgeoning belly.

"Your niece is perfectly fine," Cati retorted as she protectively placed a hand on her stomach.

She and Greg had decided they wanted to be surprised on their baby's sex. All they wanted was a healthy little one, so nothing else mattered.

"How is your retirement process going?" Hank asked Mouse, changing the subject to divert his wife's attention. Cati mouthed a "thank you" to him and he gave her a slight nod.

Mouse sighed.

"You know the government. Everything moves slowly. It could be next week, it could be next month, or it could be next year," Greg groused.

"Well, like I told you before, you've always got a spot in my unit," Hank said as he forked his egg. Cati and Cali both stilled.

"Nothing like having two sets of eyes on our cases," Hank continued. He looked directly at Cati. "That is, if you don't mind sharing your work load?"

Cali rode into the station with Hank, which they didn't do very often thanks to their schedules.

"Did Cati seem a little skittish to you this morning?" Cali pondered, her hand resting in Hank's. He shook his head.

"Nope," he replied.

Cali instinctively knew her sister was hiding something, but she just couldn't put her finger on it. She let the matter drop and it soon faded from her purview as they arrived at the district.

"I do," Cati parroted as she gazed into Greg's eyes. The justice of the peace turned his attention to Mouse and recited the vows again.

"I do," Greg replied, smiling at Cati, feeling more confident in this moment than he ever had in his life about anything else. His only regret was that Jay wasn't standing with him to witness it.

The judge pronounced them husband and wife.

"Do you think we can afford it?" Cati quietly asked her new husband as she fidgeted with the golden band on her finger.

"We can, but didn't you like the other place better?" Mouse replied as he shut the closet door and turned to face her. She rested her hands on her belly.

"I think either place will work. It's what you want and feel most comfortable in raising our child in," he tenderly said.

"I want whatever you want," she softly said. Mouse drew her close.

"You and this baby are all I want. So tell me which place makes you happier," he said. Cati's eyes welled up. She blamed it on the hormones.

Cati walked through their new home, a quaint little two-bedroom house in a quiet family-filled neighborhood, as Greg settled the paperwork with the realtor. Fortunately he had already had the foresight to start the process with the VA for the loan, so signing was merely a formality.

She fingered the peeling wallpaper in the room that would serve as the nursery and daydreamed about what color they should decorate in. She couldn't wait to tell Cali and get sister's input.

Cali was surprised to find suitcases and a couple of moving boxes in the foyer when she and Hank arrived at home that evening.

The smell of spaghetti wafted from the kitchen. Cali and Hank shared a perplexed glance. They may have been twins who shared several traits; however, culinary skills wasn't one of them. Cati couldn't cook to save her life.

Mouse was standing over a large pot of noodles on the stove stirring as they walked in. A saucepan with marinara simmered nearby. Cati was tossing a salad, and plates were already on the table.

Cali started to open her mouth to ask what the heck was going on when her twin rushed her and gave her a huge bear hug. They clung to each other and suddenly they were laughing and crying as Cati proudly showed off her dainty wedding ring.

Hank gave Mouse a knowing smile as Mouse turned off the heat.

"We just wanted to say thank you for everything you have done for us," Cati gushed as she motioned for Cali and Hank to sit down.

"So we will see you both in the morning?" Hank questioned as the four of them stood at the front door. Mouse had already loaded their belongings into Cati's vehicle.

"Yes, sir," Mouse answered, shaking Hank's hand. "Thank you again."

"I will be over this weekend," Cali said to Cati as they hugged once more.

"You better!" Cati replied.

"Can you remember the last time we actually had the house to ourselves?" Cali asked as Hank shut the door and turned off the porch light.

Hank laughed as he followed her into the living room.

Cali stopped in her tracks and whipped around.

"We have the house to ourselves," she said incredulously.

"Hmmmmm," he said, chewing on the side of his cheek, nodding his head, a gleam in his eye.

They got reacquainted with their couch, rechristening it ...