This was written by Alchemicgree and is used with his express permission.

This chapter is set roughly a year after Luna & Octavia got together and details how Prince Dusk was conceived with the aid of a bat pony guard by the name of Night Watch.

It had been another year since Octavia first played for Luna, and the two mares had been dating for a little over eight months. After so much time together, Luna and Octavia had gradually become more and more sexually active. Their most recent date, which had consisted of a cloud five thousand feet above the Royal Palace, an enchanted gramophone, a charmed wine bottle designed to refill itself and a personalised night sky just for her earth pony, had brought them back to Octavia's suite in the Palace’s east wing.

In a fit of deep passion, Luna and Octavia were moaning each other’s names as both of their wet pussy lips were giving each other wet, sloppy kisses. Their rear legs were grinding and pressing together, their forehooves pushed against the ends of the bed, and their tongues hung out of their mouths.

"Is your sister going to walk in on us again?” Octavia asked as Luna began to get more and more dominating in her grinds and presses.

"She might,” Luna commented slyly as Octavia submitted to the Princesses advances. "You know she needs all the pointers she can get…”

“Hey! Lulu that’s not funny!” Octavia pouted, with all her willpower momentarily stopping what they were doing with a strong hoof pressed to her marefriend’s chest.

Blinking her turquoise eyes, Luna realised she’d overstepped the mark just slightly. “Tavi…baby…I promise Celly won’t walk in. I’m sorry for my bit of fun.”

Try as she might, the dark grey earth pony mare couldn’t stay mad at her beautiful lover. With the alicorn’s apology accepted it only took a few more hard grinds to get her back on the edge of her climax. “Oh…Oh goddess, L-Luna! Keep going, I'm gonna, I'm gonna!" She screamed at the height of her pleasure.

"Keep going!" Luna all but commanded as she was reaching her orgasm. "I want you to cum with me!"

Octavia didn't complain, she loved it when Luna got all dominating; it was a sort of turn on. Tilting their heads back in pleasure, both mares let out an orgasmic scream as they both felt shocks of pleasure shoot through them. Their orgasms spent, Luna and Octavia fell back onto the soft bed. Within a couple minutes, the two lovers were embracing each other in a gentle cuddle, their bodies still soaked in sweat and passion.

"That was amazing." Octavia cooed against her lover's body. "I love you so much, Luna."

"I love you too Octavia." Luna cooed back, nuzzling against her love's body. But, her tone was a little more mono-toned than usual.

"Are you okay?" Octavia asked. "What's on your mind?"

"Well, we've been together for nearly a year now." Luna started. "But I...I...well..."

"You still want to find out who that missing pony is?" Octavia finished Luna's thought. "I know how much finding that descendent means to you. If you want, I could help."

"I...I can't..." Luna said, a small bit of sorrow in her voice. "I failed her, and it's up to me to find him. I'm close, I just...I just don't know what to say."

"I know you'll think of something." Octavia smiled, supporting her love. "Also, there is something I wanted to talk about." Luna didn't answer but the expression she showed told Octavia she wanted her to continue. "What do you think about having foals?"

The next couple weeks have been an extra bit of stress for Luna. The search for Sky Dive's descendant, in addition to Octavia's request for children has made Luna a little too distracted and worried to even focus on her own Night Court, let alone do anything else. Thankfully, Celestia was supportive, helping Luna organize the paperwork and even took care of the Moon. As for her search on the lost heir, Luna was close. She knew it was one of her guards now. It had to be! But which one? But tonight, that had to wait. Tonight, Luna and Octavia were going to discuss the idea of foals.

Sitting in the private chambers of her suite, Luna awaited Octavia's arrival. Octavia had previously made it clear that she wanted to discuss everything tonight. Luna couldn't refuse, even with all her stresses and worries, Luna didn't want to miss anytime with her marefriend. But presently her wait came to an end. A knock at the door woke her from her thoughts.

"You may enter." Luna called to the door.

The door opened revealing Octavia, looking oddly more ravaging and slightly flushed than usual. But she was not alone; besides her was one of Luna's guards. Night Watch was his name. He was a bat stallion with a crème shade of blue and a nearly shaved mane that looked as though it might be a dark shade of midnight blue. His cutie mark was a crescent Moon with a pair of white wings; but what really drew Luna's attention was his sparkling green eyes.

"Night Watch?" Luna commented. "Octavia's escort wasn't necessary, but I thank you."

"My pleasure Princess." Night bowed his head. "I was ordered by Princess Celestia to escort Lady Octavia to your chambers and to guard the door to ensure nopony is to bother or interrupt you two."

Before Luna could ask, Night simply nodded and left the room. Looking Octavia over, Luna saw more and more that Octavia was strangely more aroused and trembling than normal. "Uh Octavia?" Luna asked. "Are you in…"

Octavia suddenly leaped at Luna, pressing her to the bed; but not before her mouth pressed against Luna's. "Heat? Yes!" Octavia continued her oral assault on Luna's mouth, soon moving it to her neck. Luna wanted to struggle a little, but deep down, she was enjoying this; her body shivered in the excitement and pleasure Octavia's mouth was giving her.

"Y-You shouldn't be here." Luna reluctantly commented. "If you're in heat, then…"

"I don't care!" Octavia said, interrupting Luna's comment with more kisses, and her hoof moving down to Luna's nether regions. After a couple seconds of rubbing, Octavia giggled in Luna's mouth. "It seems somepony is getting wet."

"I-It's not like that." Luna blushed, finally getting Octavia off. "Octavia. I love you, but a foal. I mean how could we do that? We're both mares."

"We can find a donor." Octavia suggested, “I think I even found the perfect candidate.”

"Candidate?" Luna's turquoise eyes widened and her ears drooped at the thought of some other pony mating with her marefriend. "Who could possibly be a suitable donor?"

"You can come back in." Octavia called to the door. The door opened, revealing Night Watch.

"Night Watch?!" Luna asked. "But why?"

"Princess Luna..." Night Watch began his explanation. "I just wanted to tell you something. When I was a little colt, back when you were sealed in the Moon, I was told by my mother that if I were to ever meet you, I was to tell you this. The tree where you met her was a black walnut and the Moon was full and shinning when you two met."

"W-w-what did you say?" Luna asked, the world seems to halt around her. "H-How do you know this?"

"Because you were good friends with my ancestor...more than good friends…" Night answered, bowing his head in respect. "I was always told that you and Sky Dive were the closest of friends."

"You..." Luna dropped to her knees, the tears wouldn't stop flowing. "After all this time...you were right there...and I never knew...I'm a horrible Princess and a worst friend...I couldn't even..."

"It's okay Luna." Octavia hugged the still crying Luna close. "From what you told me, Sky forgave you, she always loved you, just as I love you."

"Princess." Night presented himself, showing off his more toned body. "I was ordered by Princess Celestia to help with Lady Octavia's consummation. But only if you wish it."

"You mean..." Luna looked at Octavia, then back at Night, then to Octavia again. "You want him to be the father?"

"I want you to be the parent." Octavia said, hugging Luna tighter. "Who better to impregnate me than your old loves descendent?"

"But, but…such an idea. I mean, how I could ever…" Luna's words were interrupted by Octavia's kissing mouth.

"I know this is a lot to take in all at once." Octavia said. "I'm sorry I'm rushing your choice. We don't have to do this if you don't want to."

Luna sat there for a moment, her mind was going crazy from the thoughts and revelations. Here was her marefriend, offering to get pregnant with the child of the descendent of her first love's bloodline. The very idea was almost a mixture of too good to be true yet too bad at the same time. How could Luna allow this? But looking at Octavia, how she cared for Luna, how she was willing to put her own needs behind Luna's. Wiping the last of her tears away, Luna nodded her head, kissing Octavia back.

"You may proceed." Luna ordered Night Watch, quickly recovering her composure. "Night Watch, you are to consummate with Octavia and you are to not stop until she is impregnated. Understood?"

"Yes Princess." Night nodded. "I shall fulfil my role as donor and once my task is done, the child will be yours and Lady Octavia's."

Luna didn't say anything else, she merely nodded as she slid around the large sumptuous bed to nestle in alongside her marefriend’s head, getting ready to give her kisses and encouragement as was needed. Octavia remained on the bed, leaning back to give Night Watch room on the bed. As strange as it was knowing what was to come, Luna felt a strange sense of arousal from this situation. She has read that some couples would do something like this, sharing with another pony to spice things up. Her niece, Cadance had taken great lengths telling her all about it. She just didn't know how to approach Octavia about it. But here she was, about to watch Octavia be rutted by another pony; even more kinky, to get impregnated by another pony.

"How would you want me to proceed?" Night Watch asked, staring as Octavia raised herself to show off her wet marehood. It was obvious that despite the focused look on his face, Night was aroused; his stallionhood was already out and was quite large for a stallion of his age.

"Just put it in." Octavia stated, wiggling her rear towards the guard. As aroused as she was, Octavia was never too into stallions. "What are you waiting for…ahh"

Night saw that Octavia was wet, but not wet enough to take in his full girth. So instead of trying to hurt her, Night leaned in and starting licking at Octavia's slit; lubing her up for his eventual intercourse. Despite her affections towards Luna, Octavia was feeling very good from Night's tongue. The way he was stroking her inner lips and lapping up her juices, it only made her wetter. For a moment, Octavia looked at Luna. The moment Octavia and Luna's eyes met, the feeling that her love was watching her body being played with by someone else sent a new shiver through her body. This shiver made her pussy squirt out an early orgasm.

Seeing her beloved mare have her first climax of the evening, and the connection they held with each other's lingering gaze, Luna bent her neck and gave Octavia a deep passionate kiss, wasting no time at all in sliding her tongue into her mouth.

"Are you alright Lady Octavia?" Night asked, hopping he hadn't been too rough on her.

"I-I'm…I’m fine." Octavia gasped around Luna’s kiss, she tried to compose herself, but she was just too horny to really relax. "Just shove that…dirty…big…sexy… oh just rut me!"

"Yes my lady." Night said, placing his forehooves on Octavia's rear, before thrusting his large cock into Octavia's tight pussy. Though she was by no means a virgin, having been subjected to Luna’s fun collection of toys, an actual cock on a real enthusiastic stallion was an altogether different proposition to a dildo.

Seeing her marefriend struggle to take the bat pony’s length – and girth – Luna decided once again to delve her tongue straight into Octavia’s mouth, while, at a devious thought the lunar alicorn lit her horn and with a subtle little spell she sent rippling vibrations through the dark grey earth pony mare’s breasts and nipples. With the heat-addled mare now dripping wet and whimpering due to the Princesses timely intervention, Night Watch went back to his duty, pulling out half way; only to thrust back inside Octavia's slit to the hilt, burying himself inside her.

Night continued his fucking; slow at first and making sure to slowly widen Octavia's pussy so he wouldn't hurt her. While this was going on, Luna continued to kiss her marefriend’s lips as well as magically caressing her breasts. It was still too much to take in at once. To think that the descendant she was looking for was right there all this time. Night Watch was not only one of her guards, but was also the one who was almost always stationed to guard her chambers and even escort her around the castle. The pony she spent so long searching for was right there. After feeling that her pussy was wet enough to take more, Night started to roughly pound against the mare, maintaining a firm pressure on her hips while Octavia quietly moaned with delight. The sound of his groin slapping against her echoes throughout the room, followed by Night's growing grunting and the Octavia's moans of ecstasy.

Eventually, Night began to feel himself coming to a climax, his movements were getting faster and faster as he built up to his release. Below him, Octavia had already lost herself to the pleasure of Night's broad shaft, her eyes were rolled upwards and her tongue was soon drooling out of her mouth while her face rubs against the soft bed. With a final thrust, Night's hips lurched forward as he painted Octavia's insides with his thick spunk, relishing in the feeling of his ejaculate filling her up to the brim and plugging her entrance; as well as this act being finally over. Slowly, Night released himself from Octavia's tight body, finishing off by covering her curved back and rump with the rest of his seed.

"I hope I fulfilled my role." Night commented, a little short on breath from his orgasm, seeing how much he came inside Octavia; a small bit of pride filled him when he saw a little of his cum was trickling out of Octavia's pussy.

"You did excellently," Luna commented as she finally broke her long-held kiss she had shared with the dark grey mare before her voice filled with uncertainty. "Ah, you...I…"

"Of course Princess." Night bowed before heading to the door. "I shall ensure nopony disturbs you both."

"Night Watch!" Luna called out to watch the stallion stop and turn. "Thank you, and I...I'm sorry for what happened to her."

"Thank you Princess," Night commented, "I know she would have loved to see you again." He turned back to the door least he see his Princess cry.

"One more thing," Luna said addressing the stallion while looking deep in her lover's eyes. "When the foal grows old enough to ask questions about their origin. We'll tell them of you."

The stallion staggered a step as he continued towards the door unable to think of a reply.

"Thank you for making my wife happy," Luna added as she watched Octavia's eyes grow wide.

The stallion left the room with a smile on his face and quietly closed the door.

Luna looked Octavia over until her focus stopped on the puddle of fluids on the bed. "Do you think it worked?"

"Wife?" was all the earth pony could manage.

The Princess snapped her attention form the mess back to Octavia's face. "Yes, I think a foal should have two sets of parents." Luna leaned in for a kiss.

When they separated Octavia smiled and looked down. "Yes, they should." She ran a hoof over her belly. "I believe it did," She said to answer the earlier question then looked back up into her lover's eyes, "What should we name it?"

"If it's a colt...Dusk Melody." Luna considered, feeling Octavia's warm sweaty body close to her.

"And if it's a filly?" Octavia asked, cuddling back to her love. "How about Moon Dive?"

"I'd like that." Luna kissed Octavia's forehead. "I love you."

"I love you too." Octavia kissed her lover back.