Previously

Harm stood in front of her hesitating for a mere second, and then remembered how good it would feel once it was over and done with. He took a deep breath and got down on one knee.......

Now

Mac's mouth dropped open as he pulled out a small velvet box.
"Not very proper marine." Harm stated as he tapped her chin to close her mouth. He then looked at her seriously opened the box to reveal a beautiful diamond set ring. "Sarah Mackenzie you are y best friend and my partner, you are my confidant and my rock. I couldn't ask for more of you except that you do me the honor of being my wife." Harm sat there watching for a reaction any reaction, but all Mac did was sit there and stare. "Sarah?" Harm asked unsure of what he had just done.
"Don't call me that Flyboy."
'O no, she's gonna say no, I screwed up royally' Harm thought.
"It's Mac and yes yes yes of course I will." Mac said as she jumped into his arms.
"Thank you God," Harm said to the sky.
"What? Did you think I'd say no?" Mac asked
"After you telling me not to call you Sarah I started to freak out." Harm explained, "Why did you ask me not to call you Sarah anyway?" he asked thoroughly confused.
"It's weird coming from you. I like you calling me Mac." She explained. Seeing he didn't understand she went on. "Mic and Chris both called me Sarah and it was nowhere near as endearing as the way you say Mac. I guess I just like the way it sounds and the way it makes me feel."
"How's it make you feel?" Harm asked.
"Loved," she stated simply. He was taken aback by the ease in which she answered.
"Well I love you." Harm stated just as simply, "Wow for something that seemed so hard to say that sure rolls of the tongue." Harm joked.
Mac smiled "I love you too Harm."
"So...." Harm said looking around, "What do we do now?" he asked.
"Well....um..." Mac had no idea of what to do next.
Harm noticed that Mac had nothing in mind and saw his window of opportunity. So he leaned in and covered her lips with his in a loving kiss.
"What was that for?" Mac asked as soon as she could piece together the words.
"We're engaged I can do that now, no strings attached" Harm smiled as did Mac. She looked into his eyes and saw the love burning in them, it was for her, no one else.