Spencer prepared a dinner for Saturday, but the Unit received an urgent case in the morning that same day and they didn't return until Monday afternoon.

"I'm very sorry, I know you had everything ready," Aaron said as soon as he entered the house.

"Don't worry, a case is more important." Spencer gave him a kiss and helped him with the travel bag.

Aaron smiled, his ex-wife wouldn't have said the same.

"How was the visit with Haley?"

Jack had two visits a month with his mother, always supervised. Normally Aaron would take him to a Social Services Center. He would stay in a waiting room or walk around while an employee kept watch as the woman spent a couple of hours with her son, but this time it was Spencer's turn to take him and Hotch was worried.

"Mm... About that..."

"What happened?" he asked, becoming alert.

"They had to hold Haley back when she came out. She started insulting me about the pregnancy, Jack had enthusiastically told her, but when Jack called me Mom she got even more furious and tried to attack me."

"Are you okay? Did she do something to you?" Aaron held his arm as he felt his belly with his other hand.

—No, no, I'm fine, calm down, she didn't touch me."

"I'm going to talk to-"

"There's no need. The Social Services are going to take over, make a report on the incident and let us know their decision, but they've told me that they're likely to cancel the visits for a while."

"Okay, how is Jack?"

"He's a bit shocked and angry with his mother. Go see him, he's reading in the living room.

Aaron knew that his son wasn't okay when he entered the room and the boy didn't rush up to hug him. He sat next to him on the sofa and stroked his head.

"Spencer told me what happened yesterday. How are you?"

"I'm fine," he answered with a pout.

"Come on, tell me a little more." He put an arm around him and pulled him closer, trying to make him feel safe. "I know it was difficult for you, did you have a hard time?"

The little boy nodded and left the book on his lap.

"Haley tried to hit Mom and said nasty things to him. She didn't look like herself, I didn't like it."

When he noticed the boy calling her by her name, he knew things had changed and he was sure that Haley's behavior had sped it up. On the one hand he felt bad because his son didn't deserve to go through that, but on the other he was glad that he now considered Spencer his mother, that's how it should be.

"Adults sometimes do things we shouldn't do when we get angry." He wasn't sure what to say because Haley's behavior had no excuse.

"Why was she angry?"

"I don't know, honey."

"Was she angry at me?" The boy struggled to hold back the tears.

"No, of course not, there's no reason for her to be angry at you. Only she knows why she did that."

"Mom!" he called to Spencer and the omega came over right away. "Sit with me."

Spencer exchanged a look with the Alpha, who smiled at him. He sat down next to them and the little boy immediately curled over his lap, his head resting on his chest. Jack calmed down as soon as Spencer hugged him.

"My God, Spencer, really?" That was Morgan's greeting as soon as he entered the house as he caught the scent, despite the omega being in the kitchen. "You did hurry, no doubt."

"Congratulations are in order," Rossi said, with a glass of wine in hand and chatting with Will.

"Right, right. Congratulations, Aaron. Can I go congratulate Spencer?"

"Sure, come in."

In the kitchen Spencer was chatting with Jennifer and Garcia while he finished dinner.

"How are you doing?" Garcia asked him.

"Well, I'm tired all day and I sleep a little more than usual, but at least the nausea is over."

"Oh yeah, they're the worst." J.J. knew what she was talking about. "I'm going to leave you some herbal teas that come in handy for rest."

They chatted on while Jack and Henry played around the house and by the time Prentiss arrived they began to eat dinner.

"Wow, Spencer, you're really good at this," Rossi commented, tasting the food.

"Thank you. It's not hard to follow the recipe instructions."

"Still it takes a lot of love for a recipe to taste so good."

"Am... I don't think love has anything to do with cooking, it's more like chemistry," he replied confused.

His friends laughed, he was the same as always despite everything.

"You know, this week you could already know the baby's gender," J.J. told him.

"Yeah, but I think I'd rather it be a surprise."

"Really? I didn't expect that from you," Prentiss commented. "I've seen all the books you have, I figured you wanted to have everything under control."

"All the essentials yes, but whether it's a boy or a girl won't change anything, I don't think it's necessary to know."

"Mom, I want to know," Jack told him from a smaller table where he was dining with Henry.

"Don't put your ear to what we're talking about," replied the omega.

"I want to know, too," Hotch added.

"It's handy when it comes to thinking of the name or buying the clothes and all that," Will suggested.

"We can think of names for both genders and I'm not going to cover him with blue clothes if he's a boy or pink if she's a girl. They'll have all the colors so that's not a problem."

"Doesn't the fact that I want to know count?" Aaron asked.

"Would you love it more or less if it were a boy or a girl?"

"Of course not!" he replied, almost offended.

"Then no, it doesn't count. I want it to be a surprise. For something I don't need to control, I don't want to control it."

That settled the discussion and Aaron had no choice but to accept it.

Dinner went on and on because everyone was comfortable and felt no need to leave. When the adults had finished their dessert and the children were again playing around the house, Hotch got up with a drink in hand.

"I want to thank you all for coming and, above all, for being part of our family. In this house we're only three people, but this little one will have a huge family, just like Jack. You know that whatever happens, whether we work together or not, we'll always be a family, not just a team."

"Oh, come on, you're going to make us cry," Morgan joked, although Garcia and Spencer already had tears in their eyes.

"I agree with Aaron. You'll always be my family and I love you all as such." Rossi also raised his glass.

"Of course, did anyone still doubt it? After everything we've been through together." Prentiss joined in the toast.

They were certainly not just co-workers. The feelings between them were those of a family, those of a pack in which Hotch was the leader. Spencer, despite not working with them anymore, was still Hotch's mate, part of the pack like Haley had never been.

"Hotch, we have a case," J.J. informed him peering into his office.

"I'll be right away."

"But... Hotch..."

"What's wrong?" He asked, looking up from the report.

"Isn't Spencer's first ultrasound tomorrow? You should be with him."

Aaron pondered for a moment and got up from his chair.

"Then let's do everything we can to close the case today."

"What if we can't?"

"Spencer wouldn't let me drop a case to go to the ultrasound."

An unsub was kidnapping drunk teens when they were partying or at clubs in California. They failed to catch it that same day, nor did they hope to catch it the next.

"I'm sorry, I know I should be there with you, but-"

«No, please don't apologize. I'll be fine, I'll call you when I'm done, you just focus on capturing it, it's the most important thing.»

"Okay I love you."

«I love you too.»

He knew that Spencer would never ask him to go back or recriminate him later for not being with him, but Aaron could tell from his tone of voice that he was disappointed and that hurt. That turned into a bad mood and took it out with others. His team understood it. It was an important day and he couldn't be with his omega, so they didn't take it into account.

Around the time of the doctor's appointment, he couldn't stop looking at his cell phone, waiting for the call to see how it went.

"Hotchner," he answered the phone with an aggressive tone.

"Am... Sir?" Garcia answered a little scared. "Do you have the tablet nearby?"

"What happens? I'm busy, Garcia."

«I know, sir, but if you have a minute... Trust me, please.»

Aaron sighed and turned on the tablet. Right away Reid's image appeared.

"Spencer?

«Hi! Do you have five minutes? I don't want to bother you.»

"Is everything okay?" he asked concerned.

«Yes, yes. I'm going to start the ultrasound. If you have time, García has set it up so you can see it from there, but if you're busy we can record it...»

"No, I have a few minutes." He closed the door to the room where they had set up their command center and sat down at the table. Later he would have to apologize to Garcia.

«When we start, you'll see the monitor on your screen.»

Spencer set his phone on a stand on a table and lay down on the gurney.

"Let's start, Spencer," the doctor told him.

She spread the cold liquid over his slightly rounded belly and pressed the transducer on it. Spencer was nervous, he really wanted to have his Alpha next to him, seeing him on the screen of his cell phone wasn't enough. Like all mothers, he was concerned that something was wrong, that something would happen to the fetus, or that there were problems with the pregnancy.

"Let's see... Hm…" the doctor hummed to herself.

"Is everything okay?" Spencer asked impatiently.

"Easy, let me see," she said smiling without taking her eyes off the screen.

Aaron could see the monitor from his tablet. He could see the black and white image of the baby. It was very basic, but the silhouette of the baby, its head with the contour of the face, torso and limbs, was perfectly distinguished. The Alpha covered his mouth with his hand. His heart was pounding, he was touched.

"Well, Spencer, I have good news. I don't see any problem with the fetus, it seems to be developing normally. I don't see any signs of preeclampsia, and your reproductive system shows no abnormalities.

«I'm so glad,» Aaron sighed in relief. Even in his voice you could tell that he was smiling.

"There are still things that can't be seen on an ultrasound," Spencer said in a whisper, not loud enough for Aaron to hear, but the doctor looked at him worried, that wasn't the reaction mothers used to have at that moment.

"Now we are going to listen to the baby's heartbeat."

The doctor turned the monitor so Spencer could see it and turned the sound on. When the rapid heartbeat of the fetus was heard, the omega could no longer contain himself and tears slid down his cheeks.

"Don't be scared that they're so fast, they're perfectly normal. Do you want us to try to find out if it's a boy or a girl?"

"No, I'd rather it be a surprise."

«I do want to know.»

"If I don't know, you're not going to know either and if you insist I'll hang up," Spencer warned him.

There was a resigned sigh over the phone and Spencer smiled, still looking worried.

Spencer was lying on the living room floor with a pillow under his back and another under his head. He was wearing a thin cotton T-shirt and shorts, both from Aaron. The T-shirt was very baggy around the shoulders, but stretched out on his bulging five months belly. He felt so hot that it was hard for him to bear his shirts and long pants, and they were very uncomfortable with his new pregnant figure despite having bought clothes several sizes larger than his. He was sweating so much that he didn't even want to read. He wanted to turn on the air conditioning, but it was bad for him so he had to settle for fanning himself. Summer was definitely the worst time to be pregnant.

"I'm back," Aaron called as he entered the house, carrying a large box and a couple of bags.

"Welcome back..." Spencer replied without energy.

"Are you okay?" he wasn't scared by the scene, it was the usual thing those days.

"Yes... Can you get me something cold to drink? Whatever."

"In a minute, but first I have a surprise for you. Well, two actually."

He placed the box with the fan drawing on the front next to him.

"Oh, God, thank you." Spencer got up and desperately began to open the box. He had commented the day before that a fan would not be as bad as air conditioning.

"Easy, I'll assemble it now, check this out first."

Hotch handed him a bag with the "BeMom" logo drawn in pink. For a second Spencer thought they would be things for the baby, Aaron had already started buying some toys although the chances of reaching term hadn't reached 75% as Spencer had requested, but he had long since forgotten about that. However, he was speechless when he saw the navy blue maternity sundress.

"It's a joke?"

"Of course not. They've told me that with that you'll be much more comfortable, both because of the heat and because of the belly."

"I'm not wearing a dress!" he replied, standing up with Aaron's help.

"Why not? What's the problem?"

"What's...? I-I'm a man and... and I've always worn suits with a shirt, tie... I can't wear a dress."

"You are an omega, no one will look at you strangely if they see you in a dress, in fact it's rarer that you always wear a suit" Aaron was taking it easy, he knew it wouldn't be easy, but he was not going to back down. He put one arm around his waist and placed his other hand on his belly. "Besides, you can't keep wearing a suit with this belly. It's very uncomfortable, right? No matter how big you buy your shirts, they have a limit. It's normal for you to wear maternity clothes. I've chosen a very discreet and simple one, you'll like it when you put it on.

"But I..."

"Spencer, I want to see you with it on, let me have this," he kissed his forehead and his cheek and gently bit the mark on his neck. At that moment, Spencer couldn't refuse anymore.

"Daddy, what took you so long!" Jack hurried down the stairs.

"Sorry, buddy, I've been buying some things. Can you help me assemble this fan for Mom?"

"Yes!"

"Good. Spencer, why don't you go to change while we assemble it?"

The omega looked at him reluctantly, frowning and pursing his lips in displeasure, but he finally took the dress from him and went up to the room. He took off his clothes and stayed in panties. They were special for male omegas, and he had been wearing them for a long time because no male underwear was comfortable or practical for pregnancy. But one thing was panties that only his Alpha would see and quite another a dress. He would put it on so that Aaron could see it, but there was no way he would go out with it. It was normal for male omegas to wear women's clothing if their Alphas liked it, but he felt uncomfortable even in a T-shirt.

He lifted the dress by the straps and stared at it for a moment with a scowl. At least Aaron had good taste. He resigned himself and put it on. You could tell that it was for men because it was tight-fitting in the chest area, which was fine since his breasts hadn't swollen yet. It was softly gathered down the chest and it fitted his belly loosely, falling loosely below it. It reached down to his knees without covering them. He looked at himself in the mirror and saw his face grow redder and redder, the blush spreading down the neck and neckline of the dress as well.

He was startled when there was a knock on the door. Aaron walked in and his face lit up the moment he saw him. The Alpha walked over to him and hugged him from behind, looking at him in the mirror.

"You look lovely, really beautiful."

He put some strands of hair behind his ear and caressed his face. His shoulder-length brown hair was perfect with that dress. He kissed his bare neck and shoulders. That was probably what he liked the most about the dress, he loved that part of the omega, although a dress had more advantages. He caressed his belly with one hand while the other went to his thigh and slowly lifted his dress.

"A-Aaron..." he could feel his erection growing against his ass, and he smelled the Alpha's arousal. "Jack is downstairs."

"Ngh... Tonight then."

That meant he couldn't take the dress off, though now that he'd seen his Alpha's reaction it didn't seem so bad anymore. They went down to the living room, where the fan was already assembled, and Jack looked at him in surprise. Spencer looked away, not sure he wanted to hear a child's honest opinion.

"What do you think, Jack?" Aaron asked him.

"It suits you very well, Mom," he said, smiling.

"A-ah... thank you."

"Can we play chess?" he asked, already pulling the board out without paying more attention to the dress.

"Sure, you two play, I'll make dinner." Hotch gave a kiss to his omega and went to the kitchen.

Spencer had to admit that the dress was much more comfortable than pants and a T-shirt. The thin fabric wasn't so warm, with the bare legs he felt cooler and didn't bother him under the belly or in any other area now that his body had become more sensitive all over.

After eating dinner and putting Jack to bed, the couple sat on the couch, the fan still on low.

"Do you want me to massage your legs?" the Alpha asked him, knowing that they would hurt from the whole day.

"You've already worked a lot today."

"Your body works for two."

Spencer relented and lay down with his legs on Aaron's lap. His body relaxed as the Alpha massaged him, and he started feeling sleepy. His hands began to move up his thighs, so slowly that at first he didn't notice. The temperature of his body was rising, influenced by the arousal he sensed from his Alpha. A hand slid under his dress and Spencer sighed.

"Alpha..." he knew what he intended to do and didn't feel like stopping him.

He felt his fingers caressing the inside of his thigh and going up to brush the edge of his panties. He shuddered when it ran over the mark of the elastic band.

"I knew it'd be practical," Aaron smirked.

"Nnh... Bedroom."

Aaron got up and helped the omega up. He followed Spencer upstairs, enjoying the view, and closed the bedroom door behind him. Spencer stood in front of him, nervously tidying up his dress. He was lovely. His cock throbbed just looking at him.

"Lift it up," he ordered, keeping his distance.

Spencer bit his bottom lip. It didn't make sense that he was so nervous. It was just Aaron, but somehow wearing a dress made it different. He lifted the skirt of the dress to show him the small erection sticking out of his panties. He felt the heat on his face and kept his gaze fixed on the ground, but he wished his Alpha touched him. Aaron stepped closer, staring at him like he was prey, and slid a hand inside his panties, massaging his cocklet and his balls.

"You can't imagine how beautiful you are," he whispered as he lowered one of the straps. It's a joy just watching you walk. I want you to always wear a dress. I'll buy you as many as you want."

The omega shuddered. He purred with happiness at feeling so desired. If a dress got that reaction in his Alpha, he would wear it every day, but...

"I can't... wear him to the street."

"Well," he pinched one of his nipples, and the omega moaned, "when you get used to wearing it at home, we'll talk about that."

"Nnh... Alpha..." He twisted the hem of the dress in his hands, his shaking legs barely keeping him on his feet.

"How do you prefer it today? On your back or on all fours?"

"On... all fours."

"Show me that beautiful ass then," he said, letting go.

Spencer didn't wait a second, he turned and knelt on the bed. Aaron smiled at the seductive way his dress hung around his thighs. He slowly lifted it up to reveal his ass and lowered his panties. Slick dripped from his hole. He knelt behind the omega and licked the delicious nectar.

"Mmh!" Spencer stifled a groan into the pillow.

"So sweet. You taste better every day." He thrust his tongue into his opening.

"Uhn... Alpha..." he called needy.

"Patience, my precious omega." He was in no rush.

He licked the thread of slick that slid down his thigh and kissed his opening again. He kept licking and penetrating him, feeling him tighten around his tongue. Spencer's legs were shaking, he could feel it all over his body, he was unable to stay still, having to hold back the moans as well. His body was so sensitive, so aroused, that he couldn't take it anymore and he came splashing his dress with the Alpha's tongue inside him.

"I'm... uhn... I'm sorry..." was the first thing he said when he caught his breath.

"Shh. It's okay, it's just what I wanted." Aaron helped him lie on his back and stroked his head, brushing the hair away from his face. "Now I can go on without rushing."

"Nn... Yes, Alpha..." Spencer spread his legs, offering himself despite having just came.

Aaron smiled. He stripped off his clothes and knelt between his legs. He pierced him gently and began a slow rocking as Spencer recovered. He could come right now, but the omega looked too beautiful in his dress, now with a white stain, to finish so quickly.

"Show me your chest," he ordered.

Spencer looked at him embarrassed. Hotch always played with his chest and he was no longer ashamed to be naked in front of him, but for some reason wearing a dress made it look even dirtier. But he couldn't disobey his Alpha, especially during sex. He lowered the straps until he uncovered his chest.

"Nnh!" He was startled as he felt the cock grow inside him. "Are you...?"

"Bigger? Yes, you look incredibly sexy."

The omega tried to cover his face, but Aaron held his arms. He was too cute to hide it. Holding his wrists, he leaned down and sucked on his hard nipples. Spencer moaned and his insides tightened, his breasts were more sensitive than ever and he felt like he could come again with just that.

"Al... pha..." he panted, wiggling his hips.

"Ngh!" Aaron couldn't contain himself at the omega's teasing and thrusted hard.

Unable to cover his mouth, Spencer had to bite his lip to contain a cry of pleasure. Aaron no longer stopped, while still holding his wrists he thrust deeply over and over again. The heat of passion enveloped them, more suffocating than the heat of summer. Spencer wanted to remove his dress, which was now overwhelming, but his hands were firmly held against the mattress and somehow it turned him on.

He started to feel the knot grow and Aaron turned him on his side before it grew too big. He hugged him from behind, fondling his breasts, and he kept thrusting until he couldn't move anymore.

"Now you have to come for me, Spencer," he whispered, nibbling gently on his neck.

"Uhn... I can't… Nnh!" As soon as he pinched his nipples, the 'I can't' made no sense.

"Sure you can, over and over and over again."

Aaron massaged his breasts as if they were those of a woman even though they were barely swollen, and played with his nipples. Spencer wiggled, moaning sweetly until he couldn't take it anymore and came, staining the dress again. His insides hugged the knot and contracted on the hard cock, squeezing out the Alpha's seed. The omega shuddered as he heard his growls of pleasure in his ear. That would last for long minutes, and he would probably fall asleep with the cock inside of him.