"Liv?" Alex called out as she entered their shared apartment. One arm was filled with a half asleep Noah and the other was trying to support grocery bags and a bouquet of flowers. The apartment seemed oddly quiet for five pm on a Sunday especially considering she knew her girlfriend had gotten off of work an hour ago. She had tried to plan a nice day for Olivia and Noah, given that it was Mother's Day but a case had come up and Olivia had to head out early in the morning. It should've bugged her that Olivia left on a whim rather frequently but it didn't. She understood the brunette's attachment to her work.

"In the bedroom, I'll be out in a minute!" She heard Olivia's sweet voice call from the back room. Alex sighed softly as she unloaded the grocery bags onto the kitchen table. She set the flowers to the side and took a moment to admire the sleepy boy in her arms.

"Noah," she cooed softly as she stroked her thumb across his forehead, pushing his rumpled hair out of his face. "We're home, my love." Big brown eyes fluttered open slowly and Noah yawned deeply, squeezing Alex's shoulder as he did.

"Mama?" Noah questioned as he shifted in Alex's arms, looking for his mother.

"She's coming. Remember what we talked about in the car?" Noah grinned and nodded vigorously. "Okay, here." She handed over a piece of paper that was folded into the shape of a card. It was an original creation by Noah with minimal help from Alex when she was watching over him earlier in the week. On the front was a drawing that Alex reasoned must be a flower. On the inside there were three stick figures holding hands, one tiny figure, and two tall figures. She smiled when she realized one of the tall ones had long blonde hair much like her own while the other tall stick figure was very clearly Olivia. She had neatly written 'Happy Mother's Day' inside and had Noah sign it as best as he could.

"Hey," Olivia husked as she entered the kitchen, surprising both Alex and Noah. "Oh my sweet boy, how I've missed you!" She pressed a kiss to his forehead only to have Noah push the card towards her. "What is this?"

"For you Mama!" Noah giggled as he watched his mom take the card and look over it with a huge grin on her face.

"Happy Mother's Day, Liv. He made the card for you earlier this week," Alex explained as she held out the bouquet of wildflowers to Olivia. "He also picked out these at the grocery store."

"Thank you my sweet boy," Olivia murmured as her eyes went a little misty. She had to admit, she never imagined she'd have a child to call her own. She pressed a kiss to Noah's cheek, him happily returning the kiss with a wet one of his own on her cheek. "And thank you Alex. I know you helped." Alex grinned as she let Olivia softly kiss her on the lips. Just a peck while the little one was still around.

"Wove you Mama!" Noah exclaimed as she held out his arms for her. Olivia set down the card and flowers and pulled her son over to her, giving him a tight squeeze.

"I love you too, Noah! Who else do you love?"

"Awex!" He cried out as he snuggled up against his mom's chest and smiled back at Alex. The blonde couldn't help but smile.

"Hey, can you go do me a favor and grab the bag that's in your room? The one that you helped me hide?" Olivia asked Noah and the boy immediately squirmed to be released from his mother's arms. Once he was on the floor he ran toward his room. "Slow, sweetie! You don't want to fall."

Once he was out of sight, Olivia slipped an arm around Alex's waist and pulled her close. She wrapped her other arm around Alex's waist and leaned in for a better kiss. The blonde moaned softly in response to the kiss as one hand slid into Olivia's hair and the other pressed against the lieutenant's fast beating heart.

Alex pulled back after a few seconds, watching the brunette with loving eyes. "I'm glad you got off early today…I didn't want you to miss your special day with your son."

"It was a quick case luckily…and I'm glad too. I didn't want to miss a lazy Sunday evening with my two favorites." She caressed a hand against the side of Alex's face, pushing her hair behind her ear as she leaned closer to the blonde. "Maybe I'll be getting off early a little later on tonight as well?"

Alex immediately blushed at the thought, catching sight of Noah in the hallway at the same moment. She playfully smacked the lieutenant's shoulder and pushed her away. "Only if you behave. Besides, Noah couldn't stop talking about how he wanted to watch a movie with you tonight to celebrate your special day!"

"Fine, movie first but don't blame me if I get a little frisky under the blankets," Olivia whispered as she quickly turned to see her son with a large orange envelope in his hands. "You found it! Do you remember what we talked about?"

Noah nodded as he walked past his mom and over to Alex. "Awex?"

"Yeah sweetie?" Alex questioned as she glanced up at Olivia and raised an eyebrow before kneeling down to Noah.

"I wove you."

Alex smiled as she blinked back the wetness beginning to form in her eyes. "I love you too, Noah. You're my favorite little boy!"

"This is for you!" He pushed the envelope into her hands and Alex took it with a chuckle. She imagined he had drawn a picture for her as well. She reached into it and pulled out a stack of papers. On the top was a painting by Noah as she expected but the writing on it caught her off guard.

In Olivia's slightly messy handwriting, it said 'Will you be my Mommy?' Alex froze as she read the words over and over again. She quickly shifted the painting to the side and scanned the documents beneath it. Adoption papers.

"Pwease, Awex? Will you be my other Mommy?" Noah questioned as he took a step closer to Alex and wrapped his little hand around her wrist.

The blonde blinked back the tears forming in her eyes as she looked up to Olivia for some sort of explanation. She searched the brunette's face but saw no hesitation. "Don't leave the poor boy hanging, Al."

"Of course I will, sweetie!" Alex set the paperwork to the side and opened her arms for Noah who immediately launched himself into them. She pulled him tight against her chest and stood up, spinning him around slightly.

Olivia took the opportunity to snap a picture of them before wrapping her arms around both of them, pressing a quick kiss to Alex's cheek. The blonde looked at her with a raised eyebrow and a slightly questioning face as if to ask 'are you sure'. Of course, Olivia could read Alex like a book and nodded. "It was his idea."

"Somehow I doubt that, Olivia Benson."

"It was! We were talking the other night when you were still at work and he asked if you were his mama as well. I said you weren't but I asked him if he wanted you to be and the rest, well, you know the rest. We decided that both of us being mama might be a little confusing so he decided you'd be mommy."

Alex smiled wide as she shook her head. "I love you two." She turned to Noah and tickled him slightly. "And you, little man, are the best son ever." Noah giggled as he leaned up and kissed her on the cheek. "Okay, now that you two made me cry, how about we make dinner and cuddle up on the couch for a movie. Your pick, Noah!"

A/N: Pure fluff, I know. I wanted to do a cute short for the holiday since I love Olivia as a mother in the show. There will most likely be a part two.