Night Light settled himself. He was committed to this, as much as was possible. He had his wife’s support and the blessing of both his son and daughter-in-law.

So why did this feel so wrong?

Probably because it was.

He had never been a fillyfooler and he was determined not to touch his daughters/granddaughters from Twilight until they were closer to eighteen or at least thirteen when they went into heat, which was the original plan he had told his wife and daughter and the promise he had made to himself. His granddaughters were beautiful, but he was trying to maintain basic morals in a situation with no morals. If Twilight was already messing with her son, she was doing it without telling her parents and Night Light could live with not knowing even though it technically broke the rules of the arrangement.

The laws in the Empire had been unexpected and he had been pulled into it completely due to martial obligation. He had objected to Flurry Heart joining the incest group strongly when she was three and claimed that twelve or thirteen was the youngest that he would consider when all this first started, but here he was with her at age ten. Surely, he could do better… Surely, he could be better.

The hardest part of this was the fact that he couldn’t tell if Cadance and Shining were okay with this because it was the law or if because they were okay with it… Did they really want this?

He didn’t want to ask.

Sex… or even incest between consenting adults was one thing but getting a foal to lift her tail felt like a manipulation. She was supposed to be able to trust that her parents or grandparents had her best interests at heart. Even an older brother would have a pass for being close in age to a younger sister and giving in to desires that he might not fully understand but a parent or grandparent didn’t have that excuse.

Night Light knocked on Flurry’s door after dinner ended and heard a faint ‘Come in’.

He opened the door and closed it, turning to focus on her sitting on her bed, still wearing the white dress from earlier. She smiled widely.

“I’m so glad you’re here…”

She sounds sincere but she probably doesn’t want to disappoint her parents either.

Night Light raised an eyebrow. “Are you sure?”

Flurry lifted her dress again to show her pussy still winking, dripping wet with anticipation, and Night Light sighed. He knew that he owed her an explanation for his hesitation.

“I am not attracted to foals and while estrus might have attracted you to me in a natural fashion, you are not in heat. I don’t want to fuck you, but I also don’t want to see you disowned. I’m in a terrible predicament.”

Flurry’s smile faded and her tone was quiet and sad. “I understand. Equestria’s laws are different, and you followed them to the letter as a public servant. Incest must have been very hard for you to accept, and I do understand how it started. I’m young, but I’m not a fool. Or a foal, not really. I know that I’m young but I’m an alicorn princess and I am far more mature for my age than you might care to admit. I am expected to make love to you, and I accept it in the tradition in which it was established. If you don’t wish to do this now… we can wait until I’m older… or you can declare me unworthy, and I will accept my disownment and leave the family as required by law…”

Night Light stiffened. “NO! I don’t want that…”

Flurry stiffened as well, unaccustomed to hearing a raised voice towards her. “I am yours, grandpa. Use me as you will…”

Night Light approached her. He glared down at her on the bed, and she seemed to lay on her back and spread her legs on instinct as if hoping to avoid being dismissed as unworthy. Her wings unfolded and spread out on the bed on either side of her, adding to her beauty. Her pussy continued to wink uncontrollably, just barely exposed from the dress.

Night Light ripped the dress apart at the seams, as she seemed to expect him to do, leaving Flurry fully exposed. Her teats were small… smaller than he would have liked. Her pussy continued to wink but her body was small… so small. A filly that was no where close to a mare, despite the added size of an alicorn.

Night Light’s cock refused to leave its sheath. He just wasn’t attracted to a foal…

Flurry looked at his sheath and started to sweat. “Please… don’t you love me?”

Night Light stood stock still. He didn’t know how to answer. “I love you but I’m not sure I can make love to you. I hated unicorn incest growing up and I never intended to force it unto my daughters or granddaughters. Twilight was an adult when we started this and I’m okay with how it happened, mostly. But this… I’m not sure if you really want this or if you’re just following the tradition blindly. Give me a sign that this is okay and maybe I’ll accept it…”

Flurry Heart reared up and kissed Night Light. She put all of her passion into the kiss, trying to mimic experience but wistfully exposing her innocence. Oddly enough, the inexperienced kiss stirred his cock and it sprung from his sheath. Flurry could feel his cock digging into her stomach and she broke the kiss long enough to bend down and give the tip a little lick.

Night Light sighed as the filly tried to suck his cock, getting less than halfway to the medial ring. Even Twilight had been better at it her first time, although, she had been a grown mare at the time.

Eager didn’t mean ready and Night Light knew that full well from having raised two foals with his wife and now helping raise three more with his daughter.

Having succeeded in at least arousing him, Flurry laid back down and seemed intent to pull Night Light on top of her. It wasn’t going to work the way she wanted it. The angle was wrong. It would hurt at best and be horrible at worst.

He decided to try to meet her halfway on this. He sat himself up and lined himself up, the tip of his cock playing on the outer lips of her pink pussy. She was as wet as any mare he had ever seen but her pussy was so small… or maybe his cock was just that big. Even just resting his cock on top of her hot flesh made him uneasy.

He looked down at her and froze in place. She was trembling. Whether in fear or in excitement, he didn’t want to analyze it enough to figure it out, but she was shaking like a leaf in the wind and her expression was as frozen as he was. She was biting her lip, waiting for the pain of penetration. She looked so scared…

In that moment, it all came back.

A flashback of playing with her in the park as a foal.

Watching her play with her snail toy, Whammy, and smiling.

Watching her parents fret over every little detail about her while he was giving them advice on how to manage parenting without getting too stressed out.

All the good times before the incest started to happen with his daughter, daughter-in-law, and son.

How his mother had forced herself onto his cock and made him cum inside her when he was still a colt…

It had been his secret his whole life. He never even told his wife, but that was why he hated incest and why he originally didn't want it in his family. A unicorn family that could do without incest. It seemed like a bad joke now after the last seven years and three incest foals with his daughter...

Night Light gasped for air as he pulled back, his cock leaving the warm surface of a welcoming wet mess of a virgin filly’s pussy. He was so glad he hadn’t pushed inside now, and he knew he couldn’t do it.

Not yet. If ever...

Flurry raised an eyebrow at him. “Are you okay, Grandpa? You don’t look so good.”

Night Light shook his head no. “I’m sorry Flurry, but I was overcome with emotions. You’ll find that when you get older, you get weaker to tears. I can’t do this. Not yet. I won’t ‘disown you’ but we’re going to have to wait a little while longer. I don’t know yet how long, but I definitely can’t do this tonight. I’m sorry I ripped up your dress for no reason.”

Flurry nodded slowly. “It’s okay grandpa… I’ll have a new dress made that you can rip off me next time we try. Like I said… we have time… we just have to do this before I’m eighteen, though I would prefer sooner if you can reach a point that your comfortable doing me.”

Night Light nodded in agreement. “I told your grandmother seven years ago that I wanted to wait at least until you were thirteen. I don’t know why I thought I could force myself to do this tonight, no matter how pretty you are. I’m sorry for getting your hopes up.”

Flurry offered him a weak smile. “I’m fine… you should get some rest, grandpa. You’ll feel better in the morning.”

Night Light got up and left the room, head hung in shame and silently lost in his own thoughts.

Flurry sighed to herself when the door closed.

“Fuck.”

* * *

Author's Note

I'm sorry if the story seems a little rushed but the contest deadline is coming quicker than Night Light.