For disclaimer, genres, pairings rating, summary, title and warnings, please refer to Chapter 1.

Note: So as I'm sure you've guessed...Alexx is preggers in the last four chapters and depending on what you readers want, she could give birth the next chapter or she could drop after the story is finished. It's entirely up to you readers, so tell me what you think via reviews.

Chapter 10: Optimus' Last Mambo

"On the TENTH day of Christmas, my true love sent to me..."

He watched her as she slept a small and sad smile upon his metal lips, there was a huge battle coming and he knew it the human/Autobot allied forces were breaking down and Will had announced that NEST was to be disbanded simply because after Chicago the humans began to grow wary of them. The mech cycled his intakes and brushed a stray strand of hair away from his mate's closed eyes and his optics sweeped her body. The medium sized bump in the covers in the location of her abdomen made him smile fully this time, however he would've been happier if the sparkling growing inside of her was raised outside of the war, but the three months carrying time was ending and he feared that the little one would get caught in the crossfire.

Slowly it seemed as if Alexx was waking up and he made sure that he was the first thing she saw when she opened her eyes. When she did he gave her a sweet smile and brushed her cheek with the back of his servo.

"Good morning my love" he said.

Alexx smiled up at him and stretched before she stopped and put her hand on her bulging stomach. Optimus' optics became concerned and he put his own servo atop her hand, but she gave a reassuring smile and leaned up to kiss him.

"Just moving" she stated.

Optimus chuckled and then rubbed the bump before leaning down to press a kiss to it. Alexx chuckled too and then pulled him up to give him a kiss, one which he returned that is until her stomach rumbled.

"Great...do I really have to drink that horrible stuff?" She asked.

The large mech nodded and once again smiled.

"Ratchet has determined that the sparkling you carry is part Cybertronian, so he has concocted the Energon/human food mix that he has deemed safe for you to drink" he replied.

Alexx sighed and attempted to sit up, but with her protruding stomach it wasn't very easy so Optimus helped by putting his servos under her arms and lifting her slightly until she was in a sitting position. Once she was in that position, Optimus went towards the kitchen area of the base they were currently in and pulled a tub out of the fridge. A few weeks ago Alexx had showed him how to use the microwave and now he tipped a bit of the off colour liquid into a cup and popped it into the appliance setting it for a few minutes. Once it was done he pulled it out and came back to where Alexx was sat.

"Here" he said.

She grimaced, but took the cup anyway and slowly began to sip at the vile tasting liquid, grimacing as she the thick and gloopy liquid snaked its way down her throat. She gagged a few times, but managed to finally finish the entire cup.

"Eugh! How long do I have to drink that again?" She questioned.

Optimus took the cup off of her and set it down beside her before sitting upon the bed she was on and rubbing her shoulders.

"Two more...doses and that should do it" he answered.

The Shifter femme sighed with relief and felt her eyes closing again.

"Why is it that stuff always me tired" she muttered.

She yawned and leaned back onto her mate, closing her eyes and drifting into a semi-comfortable sleep.

~Optimus' Last Mambo~

A few hours later, Alexx woke up again and this time she had no intention of going back to sleep. Optimus' holoform was sleeping next to her, but he stirred as soon as she went to get up.

"Where are you going?" He asked.

The Shifter femme raised an eyebrow at him.

"To the bathroom" she replied.

He helped her stand and allowed her to walk towards the bathroom, pushing open the door for her and letting her walk in.

"I will be out here if you need me" he stated.

She nodded and went to do her business, when she was done she felt an incredible urge come over her, she'd heard from Thomas that being pregnant for a Shifter was sometimes worse than it was for humans, for example there were times when she would get extremely horny and though she knew she had to go careful because of the baby, she could count on her mechs to satisfy her urges.

"Optimus!" She called.

The mech was by her side in a moment and she looked over at him, her desire and lust clearly evident in her eyes. He saw it and instantly knew what she needed, so he nodded and helped her back to the bed where he lay her down.

"Would this be better on your hands and knees love?" He asked.

She nodded and moved to that position, thankful that she was only wearing a shirt and a pair of pyjama shorts with nothing underneath. Optimus didn't waste any time knowing that when her need presented itself, foreplay was only painful for her. He pulled her shorts down to where her knees bent and exposed his flaccid spike, picking it up in his servo he began to stroke it all the while his other hand began to stroke Alexx so that she was nice and ready for him when he went to enter her. He could feel that she was already wet, but whether that was because she had not long urinated or because she was aroused he couldn't tell, he was so used to her scent now that she was pregnant, he could hardly tell the scent of arousal to the scent of the pregnancy chemicals and hormones in her body. Thankfully though, this time her wetness was both due to her having just been to the bathroom and because she was aroused.

As soon as his spike was hard, he placed himself at her entrance and slowly pushed himself into her, revelling in the low and long moan she gave. Seating himself inside her for a few minutes, he began to rub her lower back while waiting and smiled at hearing her sigh of relief. Soon he pulled himself almost all the way out and carefully pushed back in for Ratchet had said that rough interfacing could bring about a premature labour. He repeated his actions over and over and over again until she orgasmed, but he still kept going knowing that at this time in her term she was multi orgasmic and he loved that. It wasn't long until she had her second orgasm and he deduced that one more wouldn't necessarily risk an early birthing so he continued. By this time though he was getting close himself, so he sped up his thrusts a little and while he was thrusting he was rubbing her back in a comforting way.

Soon enough her third orgasm came and the way her muscles clenched around him caused him to overload inside her. He slowed down his thrusts until he came to a complete stand still and then he carefully pulled out of her before helping her to lay on her side. With that done, he lay down behind her and his servo began to rub up and down her thigh, hip and ribs.

"Feel better now love?" He asked.

She nodded and turned her head to smile at him.

"Yes thank you love" she replied.

Optimus nodded and pressed a kiss to her sweaty forehead before moving so that her head was laying upon his arm.

"Sleep Alexx, the next time you wake up you'll need your second dose of the fluid mix" he stated

Alexx groaned and pretended to sob.

"Don't remind me. I'm missing normal food as it is Optimus. I can't wait until the little one is out so I can have a burger" she whined.

Optimus chuckled and started to soothingly rub her arm until she fell asleep.

"...Ten Lords-A-Leaping, Nine Ladies Dancing, Eight Maids-A-Milking, Seven Swans-A-Swimming, Six Geese-A-Laying, Five Golden Rings, Four Calling Birds, Three French Hens, Two Turtle Doves and a Partridge in a Pear Tree".

~Optimus' Last Mambo~

Thank you and enjoy

Vampyrex1

Date Written: 04 January 2015

Word Count: 1494

Upload Date: Sunday 04 January 2015

Next Chapter Due: Monday 05 January 2015