"What is this?" Nightmare Moon asked, looking at the sex toy that had been given to her. It was mostly shaped like a stallion's penis, complete with testicles. There was a hole in the back, and an egg-shaped bulge attached near the top.

"It's a Feeldoe," Chocolate Cherry answered. "See, this part" -- she pointed at the bulge -- "goes into you. It's supposed to let the wearer feel any movement, making it pleasurable for them as well, which makes it better than a regular strap-on dildo. That" -- she pointed at the hole -- "is where a vibrator can go if you want. And this part is supposed to rub against your clit, so the wearer can cum even if they don't get off simply from penetration."

"Interesting," Nightmare hummed as she studied the sex toy. "I take it, then, that you wish for me to use this on you?"

"Yeah," Cherry replied. "I figured that you wouldn't actually mind getting the chance to be the stallion for a while." She grinned, her tail giving a flick.

Nightmare Moon considered it. It would not be the same thing as experiencing what it would truly be like to be a stallion. Then again, neither she nor Cherry were unicorns, so they could not cast a spell to turn one of them into a stallion. That was assuming such a spell even existed to begin with. Perhaps she would ask Twilight Sparkle about it another time.

Although not the same as experiencing actual sex with a stallion, she would get the opportunity to feel vaginal penetration and stimulation. Perhaps another time, she could get Chocolate Cherry to use the toy on her in return. Plus it would also give her an opportunity to explore sex more, as well as being dominant in bed. She did seem to enjoy such, and would like to learn more about it.

"So I simply insert this part into myself?" Nightmare asked, getting a nod in response. Moving to adjust her balance, she brought the toy between her legs. Slowly, she rubbed the bulge along her vaginal lips, feeling a gentle tingle of pleasure. The tingle turned into a full thrill whenever she stroked across her sensitive nub of her clitoris. After several strokes and feeling herself becoming aroused, Nightmare Moon pushed the toy into herself.

There was a burst of pain, causing Nightmare to let out a sight hiss of discomfort.

"Are you okay?" Chocolate Cherry asked.

"Fine," Nightmare replied as she straightened up. "Just a moment of unexpected unpleasantness."

"Un..." Cherry let out a gasp, eyes going wide. "Sorry. I'm sorry. I completely forgot you still had your virginity."

"My what now?"

"It's this thin membrane that's just inside your vagina, can tear pretty easily. I noticed it when we were together the other night, but completely forgot about it. I'm sorry. I should have warned you. I should have remembered. I should--"

"Calm yourself," Nightmare interrupted, holding up a hoof. "You have no responsibility in the matter and I was not aware. There was little that could have been done about it." She then shifted, moving to take a look at herself with the Feeldoe in place. It was quite odd to see a bright pink artificial stallion penis between her legs.

"Now," Nightmare stated as she turned Cherry, "get ready."

Smiling, Chocolate Cherry went over to the bed lifted her front half up onto it. She looked over her shoulder as she adjusted her stance, lifting her tail up and spreading her legs wide to show off her chocolaty brown crotch. Her hips swayed back and forth, giving her round rump a shake.

Nightmare lowered her head, ears pinning back. Her lips pulled back as she let out a deep growl. She stalked toward Cherry, eyes focused on the wiggling target. Her wings spread out at her sides and her tongue slid across her lips.

Reaching her target, Nightmare Moon leaned forward and took a nip of one of the cheeks. Nightmare's prey squeaked out, tensing under her grip. Opening her mouth wider, Nightmare pressed it against the soft, fur-covered flesh. She let out another deep growl, sending vibrations through Cherry's butt and getting a giggle in response.

"That feels weird," Cherry called back. "In a good way, but still weird."

Slowly, Nightmare pulled her head back, fangs leaving furrow in the fur coat as the traced along the skin. Letting the cheek go, she then moved her head forward again. Slipping her tongue out, she pressed the tip of it directly against Cherry's clit. She then gave along, slow lick up along the vaginal lips, getting a moan of pleasure in response.

After taking a step back, Nightmare reared up on her hind legs and moved forward. Her front hooves landed on the bed beside Cherry as she stood above the other mare. Moving her hips forward, she brought the tip of her artificial shaft to press against the soft round red rump. As soon as she did, she could feel the shaft moving, teasing her clit and shifting inside her to send a thrill through her body. Nightmare Moon raised and lowered her hips, causing the cock head to trace along the crack of Cherry's butt and vaginal lips. Lining the tip up with Cherry's clitoris, Nightmare Moon gave a gentle push forward, causing both of them to let out a moan of pleasure.

Moving to keep herself balanced, Nightmare reached down with one hoof and took a hold of her Feeldoe. With a firm grip, she adjusted the shaft so the tip was lined up with Cherry's vaginal lips. She then pushed forward, working to sink into the waiting mare's depths. Slowly, the dark vaginal lips parted, allowing the cock head to enter the depths. As she watched the tip sink in, Nightmare wondered what it would feel like to have those depths wrap around a real flesh and blood shaft.

Pushing the thought aside, Nightmare Moon let go of the shaft and braced herself. She leaned down, pressing her barrel against Chocolate Cherry's back, and nipped at one of the mare's ears. Slowly, she move her hips forward, sinking the artificial shaft deeper and deeper into the mare beneath her. As she went deeper, the toy continued to press against Nightmare's walls and tease her sensitive nub, sending pleasure through her body. One of her ears twitched as she heard a moan, letting her know that Cherry was enjoying this as well.

Soon -- sooner than expected actually -- Nightmare's hips were pressed against the warm softness of Cherry's butt, the shaft buried as deep as it could reach. With a little push to make sure, Nightmare rocked her hips, grinding them against the soft backside, and the toy against their vaginal walls.

"Uh...Pl...fu..." Cherry whimpered out.

Nightmare stopped her movements.

"What was that?"

"Please," Chocolate Cherry managed to moan out. "Please fuck me. Fast and hard. Please. I need it."

Moving her head back down, Nightmare Moon bit down onto the back of Cherry's neck, getting another yelp and moan. She pulled her hips back, growling in pleasure as the tugging on the shaft pressed the toy against her sensitive nub even more. Nightmare then gave a fast, hard thrust, her hips slapping audibly against Cherry and pushing her forward slightly. Pressing hard, she ground her hips against the soft flesh -- get a groan of pleasure in response -- before pulling back again.

Her hips shifted as she moved, trying to adjust the angle for her maximum pleasure. The jump and cry of pleasure from Cherry drew Nightmare's attention for a second. It suddenly came to her that when she had shifted the hips for her, it would have caused the shaft to twist and shift inside Cherry as well.

Nightmare's jaw tightened as she grinned around her grip on the neck. Shifting, she tried to give herself a better stance. Once comfortable that she had a firmer position, she thrust forward again, twisting her hips. This caused new level of pleasure to explode in Nightmare as the bulge shifted inside her and the toy stroked across her sensitive nub. After grinding into the soft flesh of Cherry's rump, Nightmare pulled back to repeat the movement.

Soon a rhythm that they both seemed to enjoy was set up: thrust forward while twisting in one direction; grind hips against butt while pressing the shaft as deep as it could reach; pull back, twisting hips in the opposite direction. It felt absolutely wonderful for Nightmare Moon. Each shift and movement seemed to make the toy rub a different part of her walls. Every tug back and grind forward teased the sensitive points of her clitoris. There was even the feel of Cherry being pinned beneath her, the fur of Nightmare's chest and stomach rubbing against Cherry's back with each movement.

After one particularly hard thrust, Nightmare Moon felt Chocolate Cherry tense underneath her as she cried out. When Nightmare tried to pull back, the shaft was held firmly in place, causing her to press hard against the toy and send her over the edge. Finally releasing her grip on Cherry's neck, Nightmare threw her head back and let out a cry of pleasure, letting it mix with her partner's. White hot flashes of pleasure pulsed through her body, causing her to tense. She continued to rock and grind her hips, pressing into the soft ass and rub at the teasing surface of the toy.

Once the climax subsided, the two went limp, panting heavily. Nightmare Moon collapsed on top of Chocolate Cherry. She could feel the warmth and softness of the other mare's body against her, finding it comforting.

As the aftermath of the orgasm continued to fade, Nightmare Moon noticed the taste of something coppery in her mouth. She ran her tongue around her mouth and over her teeth. It almost tasted like...

Lifting her head, she turned to look at Chocolate Cherry's neck. Sure enough, there were glistening wet spots in the skin from where Nightmare's teeth had been.

"Oh dear," Nightmare said as she moved off of Cherry. There was a thrill of pleasure as she worked to pull her shaft free.

"What is it?" Chocolate Cherry asked as she laid there, panting.

"It seems that I got a little overenthusiastic with my biting during our little session," Nightmare Moon explained. "It turns out I bit hard enough to break the skin."

"What?" Cherry stared at her, blinking for a second. She then reached up with a hoof, pressing it to the back of her neck. A hiss of pain escaped from between her teeth as she touched the spot that Nightmare Moon had bit. Pulling the hoof away, Cherry then looked at it. Her eyes went wide.

"B..b.. blu..."

Chocolate Cherry shot up from the bed, shoving Nightmare Moon away from her in the process. She ran toward the door, yanking it open before darting down the hall.

Nightmare Moon sat where she had landed, blinking in confusion at Cherry's reaction. It had been so sudden and unexpected that she was still trying to figure out what had just happened.

After removing the Feeldoe from herself, Nightmare left the room to find and check on Cherry. As she made her way toward the bathroom, a familiar sound reached her ears. The same sounds she had made herself when she was experiencing her hangover and had ended up getting...

The door to the bathroom was not entirely closed. A tiny sliver of light shined from between it and the frame. Moving forward, Nightmare pushed it open gently.

Sure enough, as expected, there was Chocolate Cherry with her head over the toilet. She looked up toward Nightmare Moon as she came in to the bathroom.

"So," Nightmare said gently, "I take it that you are ... I believe the term is 'squeamish'... at the sight of blood."

Chocolate Cherry grimaced, ears pulling back.

Author's Notes:

Two quick notes:
1) this is the last of the detailed clop chapters. I'm sure some of you are disappointed by that. We're also going to start getting into more of the story and plot now that things have been established.
2) The Feeldoe is a real product. Except for the fact it is shaped more like a human penis than a horse, the description and use is mostly accurate.