A/N: I don't own anything but the names of those you don't recognize.

A/N2: Inspired by the "BAU Bunch" Youtube video.

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Behind the large oak closed doors, at the back of the chapel, Erin's head was spinning as a flurry of activity peaked around her. Calla lily, baby breath and rose bouquets were handed out to Emily, Penelope and Erin's sister Elizabeth. Ginny gave Erin her dozen calla lily bouquet before wishing her good luck again. A quick prayer over every assembled in the back was said by Erin's father.

"Dave doing okay?" Erin asked letting out a breath she didn't know she was holding.

Dave's brother, Emilo, just laughed. "He's fine."

"Thanks," Erin replied and then added, in a slightly lower voice, "And thank you for helping Dave today." Emilo waved a dismissive hand.

"You look pretty, mommy," J.J. said hugging Erin's legs tightly. Erin patted her daughter's back before shooing her to her spot.

The full chapel rose as strains of 'Jesu, Joy of Man's desiring' off the violin quartet filtered through the air. Dave's father, Stephen Emilo Rossi, proudly dressed in his Staff Sergeant of the U.S. Army summer dress, escorted Ginny, dressed in a red short swing jacket and a cutaway neckline with a dropped waist dress down the aisle. Dave's best and oldest friend, Jason Gideon, was dressed in his First Sargent of the U.S. Marine Corps uniform, escorted Dave's mother, Arabella Rossi, down the aisle.

Dave had been looking down the long chapel when the first chords of the processional kicked in and his head whipped up to watch the attendants make their way to the front. He laughed at the antics of his mother. She had told him she was wearing a three piece skirt suit, which he okay'd, and now wishing he didn't. Her skirt was grass green, her shirt was white and the blazer was red. Sure, it was the flag of her beloved Italy, but Dave didn't actually think she'd go that far.

Emily nudged Penelope with the stems of her flowers. Penelope had one hand hold her flowers while the other hand was on Spencer's shoulder. Dave internally chuckled at the sight. Emily wrapped her hand in Aaron's as they were the next to walk down the aisle. Down the aisle was Elizabeth and Emilo. A smile and nod from Elizabeth and thumbs up from Emilo helped Dave relax. Those doors in the back closed once more.

Suddenly the music stopped. The trumpeters gave a fanfare and the music lifted into "Semper Fidelis," the march of the Marines. Dave was visibly moved at the altar, so moved, Father Jimmy put a hand on Dave's shoulder to ground him. Erin, his section chief of his beloved BAU was already surprising him. She hadn't asked his permission to use the march; she just wanted to show Dave she supported him. And then the doors, which had closed after the siblings went up the aisle, re-opened and JJ and Derek walked towards the altar in strict concentration. JJ threw petals everywhere she could and Derek kept his eyes on his father as he kept the ring pillow in his palms. Chuckles escaped attendee's lips at the kids.

But when Erin walked in and there wasn't room for any thoughts in the chapel. Gasps, "oh wows" and audible 'she's beautiful' filled the air. Erin literally took Dave's breath away. She seemed to practically float down the aisle on her father's arm, smiling at him the whole way. Dave knew his grin showed that he was really the cat that ate the canary. The other people in the room had all seemed to disappear the minute she walked in.

It was both forever and no time at all before she was there beside her father. Her father blocking Dave from reaching and entwine hands.

When the music stopped, Father Jimmy asked, "who gives this woman to this man."

As rehearsed, Erin's children all pipped up, "we do." At that, her father kissed her flushed cheek, shook Dave's white gloved hand, and took up residence next to his wife.

"Perfect," Dave mouthed to Erin. She ducked her head, letting him know she received his message loud and clear.

Clearing his throat, seeing that Erin and Dave were lost in each other, Father Jimmy interrupted their look of love. "Now, Erin Elizabeth Strauss and David Stephen Rossi, would you join hands?" The couple turned to face each other, taking one another's hands. They looked into each other's face. Their children, standing next to them, looked up at them. The youngest kids could barely contain their excitement and the older ones exchanged eye rolls. The priest in front of them went on, "Do you, Section Chief Erin Elizabeth Strauss, take this man to be your lawful wedded husband, to have and to hold, to love and cherish in sickness and in health til death do you part?"

"I do." She grinned.

"And do you, Retired Sergeant Major Supervisory Special Agent David Stephen Rossi," Father Jimmy paused for a beat as the congregation and Erin laughed at the recitation of Dave's titles. "Take this woman to be your lawfully wedded wife, to have and to hold, to love and cherish, in sickness and in health til death do you part?"

Dave swallowed, but he nodded. "How could I not?"

The first reading, Ephesians 52:21-33, was read by Aaron, as Davina was strict with the Rossi children. She took them to Church every Sunday, regardless if Dave was away on a case or not; they were up at 8:30 a.m. promptly and out the door by 9:15.

The second reading was done by Emily. "I Love My Family So Much," every chuckled at Emily's elongation of the word so. "By Filoi Hemopo. O to be apart of a family like mine is so divine. Where love is shown, hurt is shared, our love for each other is never impaired. We talk, we laugh, we cry, but we are a family and we do it all together for as a family we do it all as one. For we are family, a family full of strength, a family full of love, a family no one can touch. That's why I love my family so much. My family is my life and always will be forever." Erin couldn't help but get up and hug her oldest daughter as she made her way back to the seats.

"Thank you," she whispered in Emily's ear. A silent nod passed between mother and daughter.

The rest of the ceremony passed in a hazy blur, until they got to the vows.

Father Jimmy stood up, waving Erin and Dave over. "Let it be known that David and Erin do not enter this commitment alone. Erin, who was bringing up three very lovely girls, all of them had hair of gold, like their mother, the youngest one in curls. And I say had because Miss Emily dyed her hair earlier this month. And yet, David, who was busy with three boys of his own, was all alone. Till the one day when the lady met this fellow. And they knew that it was much more than a hunch, that this group must somehow form a family.. And that's the way they became the Rossi bunch." The six children formed a line in front of their parents.

"Thank you for sharing your mother with me, girls. Emily, Penelope and Jennifer, thanks for loving me and allowing me to love you with all of my heart. I was not there when you girls took your first steps, but I promise that now I will love and support you and your mother in every step that you ladies take in your life." There wasn't a dry eye in the place as Dave recited his love for Erin's children.

"I love you, Aaron, Derek, Spencer, and I am devoted to making the life of your father as well as you and the girls, full of happiness and accomplishments, nurturing creativity, encouraging independence, and making sure you always know what gifts you are to this world." Erin smiled and released a breath as she said her vows to Dave's kids.

Remembering from the day before, Erin and Dave turned toward each other holding hands. Emilo stepped in to help Derek with the rings off the pillow, causing a laugh to erupt. After David received the white band from Emilo, he recited his vows, "I give you my promise to be by your side forevermore. I promise to love, to honor, and to listen as you tell me of your thoughts, your hopes, your fears, and your dreams. I promise to love you deeply and truly because it is your heart that moves me, your head that challenges me, your humor that delights me and your hands I wish to hold until the end of my days." He blew out a deep woosh of air as the ring fit perfectly on Erin's ring finger. Erin repeated the same vows and glared at Dave's ring finger as she had to struggle to put the ring on.

"Figures." Aaron muttered.

Father Jimmy quipped, "I now pronounce you husband and wife. David, kiss your wife."

"Bella," he growled low enough on her lips before capturing her sigh.

"I now present to you Retired Sergeant Major Supervisory Special Agent David Stephen Rossi and Section Chief Erin Elizabeth Strauss-Rossi." Those in the chapel clapped and stood up at the pronouncement. Again, the trumpeters sounded and "The Marine's Hymn" played the new blended family out of the Chapel. Emily smiled as she grabbed Spencer's hand as they walked down the aisle together. Aaron followed behind with his hand in Jennifer's. Erin walked down the aisle with Derek, while David and Penelope followed behind them.

Helping the six children into their own limo, Dave and Erin climbed into one that had "just married" scribbled on it. For the next hour, until they got to the caterers and the party at Chapman State Park in Potomac Heights, Maryland, they newlyweds didn't care if their six children killed each other in the limo in front of them.

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A/N3: Yes, still mad at Eric Messer that we really didn't get to see this on the television screen. Because if I was showrunner, this would happen.