Dinner that evening was quiet, just Rainbow and Posey eating lasagna. Rainbow hadn't thought she was hungry, but the smell of Posey's lasagna quickly disabused her of that notion. And it tasted as good as it smelled. Fluttershy's mom was a pretty amazing cook, considering she had no arms.

At length, Posey asked, "What's wrong, Rainbow dear? You look like something's eating you alive."

"Do you ever wish sometimes that things could be… different?"

Rainbow didn't even bother to hide her cringing after saying it. It had just slipped out. She knew she wasn't supposed to ask questions like that, and she knew she was in for a lecture now. Posey seemed to pick up on her immediate understanding of the faux pas she'd made, and set down her fork with her foot.

"I think I know what you mean," she said slowly, giving Rainbow a small smile. "I miss the way she used to be, too. But she made her decision, and now we all have to live with it."

Posey drew in a long breath that wavered a little toward the end. "I'm just happy she can live here with her mom and her best friend. And I'm happy that Windy has been so kind to her and I. It's all for the best."

It didn't escape Rainbow's notice that Posey refused to speak her own daughter's name aloud.

Posey closed her eyes, moving her foot over her heart. "After all, it keeps society pure."

She spoke with such firm conviction that Rainbow almost felt like she believed it, too.

Rainbow's cockmother didn't return home until dinner was finished and Rainbow was helping Posey wash the dishes. They both moved out to the living room to greet her.

Windy Whistles was short for a cockwoman, standing at six and a half feet tall. Her clothing strained against every fiber of her body, as along with her impressive chest and cock, she had always been athletic and had built up a hefty musculature.

"There's my little flower," she said, sweeping Posey up into her massive arms, giving her a long, drawn-out kiss and squeezing her ass with one hand. She grinned down at Rainbow.

"Welcome home, Dashie!"

"Welcome home yourself, cockmother." Rainbow smiled and gave her cockmother a hug, being mindful of the bulging, twitching cock at the front of her pants.

"How was camp?"

"It was pretty good. Had some weird stuff happen, but I'll tell you about that later."

"Later sounds good." Windy grinned at Posey, who instantly blushed red. "I can still smell dinner in the air, but I think I'd rather have a different treat first."

Posey tittered and wiggled her shoulders, making her breasts sway back and forth beneath her apron.

Rainbow laughed and rolled her eyes. "You two go have fun, I'll finish cleaning up."

Windy carried her wife into their bedroom, closing the door behind them. Rainbow sighed. Her cockmother and her stepmother would probably fuck for a good hour or so before Windy was satisfied. At least she didn't have to worry about getting any new little sisters; Posey was still child-bearing, but Windy had gotten a vasectomy as part of her job. It would help keep their costs down in the long run.

As Rainbow washed the dishes, her mind drifted through all that had happened that day. Thinking about Fluttershy made her feel sick, and she wished it didn't have to. She wished she could just appreciate what they had, the way Posey did, instead of regretting what they'd lost.

And something Posey had said really was nagging at her. Did Fluttershy really "choose" to be like this? She hadn't chosen at all, right? Wasn't that the reason this had happened to her?

The more she thought about it, the angrier Rainbow got, until it was all she could do to not throw a mug across the kitchen. Shutting the sink off, she went to the living room and turned on the TV, not that it helped her not to think.

Time slipped past Rainbow Dash, until she heard the bedroom door open and her cockmother emerged, wearing a bathrobe that hid her form much better than regular clothes did. She swept around the back of the couch and leaned down to place a kiss on Rainbow's cheek.

"Your stepmother's asleep, the poor thing," she said with a chuckle. "I guess I wore her out."

Rainbow had given up being grossed out at Windy and Posey's sex life a while back, so she didn't even so much as flinch.

"Why don't you scoot over and give your cockmother some room so we can talk?"

Rainbow did as asked, and her cockmother sat on the couch beside her, taking up a bit more than her fair share. She crossed one leg over the other in a way that kept her monstrous cock concealed under the robe. Not that Dash hadn't seen it before, but she was still appreciative that her cockmother was that considerate.

"It's later," she said. "What all happened at camp?"

Rainbow launched into a rundown of the events that had taken place, leaving nothing out. But the story soon petered out, well before she had finished it.

"Cockmother?" she asked, looking up at Windy with a kind of plaintive look.

"What is it, sweetie?"

"Did… Did Fluttershy really decide to have what happened to her… happen?"

Windy made a noncommittal noise in the back of her throat and looked away from Rainbow.

"Let me guess, she made you 'help' her today, right?"

Rainbow groaned. "Yeah. She did. And I did. It's the least I can do to help take care of her, after all."

Windy nodded. With a sigh, she turned back to Rainbow and took up one of her hands in one of her own, meatier hands.

"I know how much it bothers you, Dash. I would take over for you, but, well, I wouldn't feel right fucking my own stepdaughter. That's got more problems than her getting fingered by her sister."

Rainbow frowned, but she still appreciated the sentiment.

"We could try bringing in cockwomen to fuck her if you think it would be better. Women I know from work?"

"No," said Rainbow immediately. "No. If I have to be a little uncomfortable, then I'll suck it up just so she doesn't have to go through that."

"All right." Her cockmother nodded. "The fact is, yes. If you look at it a certain way, Fluttershy did choose for this to happen. Maybe she didn't know exactly how things would go, but she made the choice knowing that there would be a penalty. She decided not to decide, and now she's living with the consequences of that decision."

It made sense, but it didn't make Rainbow feel any better.

She withdrew into herself as her cockmother gave her an enormous bear hug, breasts pressing against her side.

"Things will be okay, though, Dashie, you'll see. I'm not going to let anything else bad happen to you, Posey or Fluttershy if I can help it at all."

Rainbow couldn't move, but she would have hugged back if she could. That, at least, gave her some confidence. She could trust her cockmother; she'd always done the best she could for both of them.

"Thanks, cockmother," she whispered, and got a kiss on the head.

"Now if you'll excuse me, sweetie, I'm famished."

"There's lasagna in the fridge," Rainbow said as Windy got up off the couch. It sprung back up a bit after her weight was lifted off. "It was real good, you're gonna love it."

Windy smiled at her. "I'm sure I will!"

After a few more hours of watching TV, Rainbow decided she couldn't avoid going into her bedroom anymore. When she did, Fluttershy was still laying there, unmoving, just like Rainbow had left her.

Being a torso girl meant she needed very little to keep her alive. Her mother fed her a nutrient broth every three days, and her body metabolized it perfectly, so she never needed to leave the room. Rainbow wished she could have tried her mother's lasagna, though. She'd have loved it.

Rainbow changed into her pajamas, suddenly aware that she was completely exhausted. She climbed into bed, under the covers this time, picking up Fluttershy and cradling her close. She took her head off so they could talk for a bit.

"Hello, Dashie," said Fluttershy, giving her a lopsided smile. "Is it bedtime already?"

"Yeah, Flutter," Rainbow said. "Just saying good night."

Fluttershy giggled and squirmed in her grasp. "You're always thinking about me, Rainbow. Are you sure you don't want some pleasure before you sleep? You could use me however you want to."

She wiggled in what she probably thought was a seductive manner. A sour hole opened in the pit of Rainbow's stomach, but she tamped down on her disgust.

"Not tonight, Shy, I'm beat. I'll see you in the morning, okay?" She gave her stepsister a squeeze.

"Okay. Good night, Rainbow." Fluttershy leaned forward to kiss Rainbow's bone spur, but that made her head fall off. Rainbow just sighed.

Rainbow picked it up and looked at it for a while. She could just leave it on her nightstand, after all. It wasn't something she did all the time, but maybe it would be nice to just leave a part of herself behind for one night.

Deciding not to decide. That's what her cockmother had said, and it was bugging her. Why did everything have to bug her?

Had Fluttershy really had a choice? Did any of them? Did she herself have a choice every night, when Fluttershy asked in Rainbow's own voice for the only thing she could possibly gain pleasure from? How could she, when saying no meant leaving Fluttershy alone, helpless and frustrated?

She wished she had the ability to decide not to decide.

With a thunk, she snapped her head back onto her bone spur. She drew Fluttershy close, hands snuggling up under her breasts. And, with her own eyes and face in working order, Rainbow Dash cried herself to sleep.

Author's Note

After I finished Headless is in, this scenario came to mind and I knew I wanted to write about it. I hope anyone finds this as interesting as I do, because I've got one more story in this setting I'd really like to write, but it won't be worth doing if no one's reading.

Still, thank you for getting this far. Let me know your thoughts in the comments!