This story contains bondage and other mature sexual themes. I recommend you do not read any further if that does not interest you.

The two-toned whetstone was an item that Shamir and Catherine took great interest in. Both of the knights had made their plea as to why they should be the one to receive the stone to Byleth. The newest professor of Garreg Mach was the woman who currently held possession of the item, but she had no need for it. Though the teacher was something of an enigma: often silent which led many to wonder what went about in her head, she was still well trusted in part thanks to how Byleth’s students commended her and her teaching abilities. They cited her abilities and fairness, two qualities that had quickly come into play over this debacle over the fine-grained stone.

Byleth had protested that it was unfair for the two knights to force her to choose one of them over the other. Though Catherine didn’t see much of a problem with that, Shamir asked the professor what she had in mind instead. She’d been expecting some sort of duel, but Byleth pointed out that the difference in weapons between Shamir’s regular bow and Catherine’s holy relic, Thunderbrand, would obviously be an unfair battle. Instead, the professor suggested a… different type of competition.

Neither of the pair vying for the whetstone was entirely sure as to what Byleth meant by “escape” game, and the only other thing the professor told them was to meet her in her private quarters at dusk. Though the proposition seemed odd, the knights were still keenly interested in the whetstone, and the pair was knocking on her door just as the sun escaped vision.

*****

Byleth creaked her door half-open, peeking outside it to confirm that it was the pair of knights who laid just outside it. She waved them in, opening the door a little more to allow them to enter, wasting no time closing it behind them. The sounds of the lock being fiddled with entered the knight’s ears, though they thought little of it given that they were all inside the professor’s rope.

Though it was a fairly barren place of rest, what drew the duo’s attention was what laid upon Byleth’s bed. Strands of rope and scattered cloths formed a mess of items over her sheets, and it was unclear as to whether the professor kept these on hand or if she had spent the day collecting them. For a moment, the room was silent as Byleth wove one through her fingers, simply playing with it while the knights stood awkwardly, a confused expression present particularly on Shamir’s face.

Then, she suddenly ordered the knights to strip. A flush of red filled Catherine’s cheeks as she vocally objected to removing her armor, even around just Shamir and Byleth. When Shamir questioned the necessity of this, Byleth explained that the competition would involve the two knights escaping a set of identical bindings and whoever freed themselves first would be the winner. Obviously, Catherine’s silver armor would get in the way, and again, to ensure that everything was as fair as possible, the two may as well strip down to as little as possible. Though Shamir was certainly reluctant, the humiliating thought of exposing herself pulsating in her head, it was just Catherine and Byleth. She trusted these two women more than probably anyone else at the monastery and one of them would be tied up as well so…

An expression of shock came over Catherine’s face as she watched her partner comply, first removing her jacket, then her choker, even her gloves! She tried to draw her eyes away from Shamir’s body that slowly revealed more and more of itself, and considered her own choices silently. If Catherine backed out now, then she’d have to forfeit the whetstone… But she’d only begun to warm up to the professor. Could she really trust Byleth with her own helpless body?

Catherine sighed, as she started pulling against the straps of her armor. If Lady Rhea could put her faith in the professor, then the knight could as well. It’s not as if they were in a particularly desolate place anyways, they would still be on monastery grounds. The two knights peeled away at their clothes and armor simultaneously until both were left in nothing more than a pair of panties and a bra each. Each one jittered slightly in their near-full exposure, pushing their arms against their bodies to cover whatever the smallclothes couldn’t. But as Byleth began to ready a rope in her hands, they realized that it wouldn’t last for much longer.

She began with Catherine, walking behind the blonde knight and silently pulling her arms behind her back. Against her gut feeling, Catherine did not resist as the rope was tied around her wrists, uneasily aware of how tight and firm the binding felt as Byleth knotted it. A few inquisitive tugs and the knight was already certain this challenge wouldn’t be easy. She’d have to work the knot to free herself--wherever Byleth had hid it. Instinctively Catherine began wiggling her fingers around to search for it and just before her head peered over her shoulder for a better view-

With a sudden streak of dominance, Byleth grabbed Catherine’s hands with one of her own, holding the squirming fingers in place while her other hand firmly held the knight’s chin in place before she could get a decent look at the rope. The professor reminded her that the competition needed to be fair, which it certainly wouldn’t be if one participant got a head-start over the other. A sigh and a slow nod was all Catherine responded with before her fingers came to rest. She instead shot her glance over to Shamir, who was looking upon the two with a glare that was far too interested in either Catherine’s body or her binding to be comfortable. Bringing her gaze finally to rest at nothing more than the wall ahead of her, Catherine could only feel her restraints grow as another rope was weaved around her arms, this time around her elbows. She slightly gasped as the professor immediately brought one rope above her chest, working it into a harness in combination with another rope below her breasts, serving the effect of pinning Catherine’s arms to her back and empathizing her modest bosom. Already the knight struggled to picture herself escaping this in any reasonable amount of time, unable to reason how she’d even begin to loosen the rope pinning her elbows…

But her bondage continued even further. She was suddenly pushed down to the bed by Byleth, instructed to lay herself upon it as flat as possible and on her stomach. Catherine complied, given that with her arms as they were was little she could do anyways should she disobey. The rough strands tightened around her ankles, then knees, and finally, thighs, pinning her legs together to rend them largely useless. Catherine could’ve sworn that Byleth’s hand lingered after tying the last of that set of restraints, gently rubbing, even--

Just as Catherine began to ask Byleth why she took a long squeeze, something was shoved into her mouth! Her reflexes and tongue weren’t enough to push out the scrunched up… something from out of her mouth before Byleth brought a cloth to Catherine’s lips, tying it around her head to gag the knight. Muffled moans struggled to escape her lips, yet she threw out as many expletives as she could even though they would only come out as a garbled mess. Catherine turned towards Byleth as she shook wildly in her bonds, taking a moment to realize that the professor was only wearing one of her stockings. A quick scan around the room gave no sight to the missing stocking, ultimately forcing her to accept the unpleasant truth as to where it rested.

Her efforts to dislodge the gag doubled as the professor continued her work on Catherine, bridging her elbows and ankles with a rope that was pulled taut until the knight couldn’t move her legs or arms significantly. All she could do was wiggle around in her newly formed hog-tie, completely helpless. Despite how the professor warned her, in the name of “fairness”, to struggle as little as possible until Shamir was equally tied up, Catherine threw all the strength she could muster at her current bonds. Shamir could have the damn whetstone if it meant she didn’t have to endure the humiliation of being a helpless and just about fully exposed damsel for a second longer. Catherine’s eyes turned to her partner, hoping that she’d realized the ridiculous and perverted nature of this bet seeing it first-hand…

Why was Shamir blushing? The sniper seemed unable to part her eyes away from the sight of a struggling Catherine, toiling in the ropes that tightly bound her body into strict bondage. Which caught her attention more? The woman who was bound, or the ropes that put her in that position?

As Byleth approached Shamir with a coil in hand, the knight instinctively brought her arms behind her back, pinning them against each other as close as she could muster to allow the professor to tie her wrists and elbows securely. There was no resistance to the next rope that followed… or the one after that… or the next… or…

It wasn’t long before Shamir’s bondage matched Catherine’s perfectly. The only discrepancy was the gag, which the two would get to watch be prepared first hand as Byleth began pulling down her other stocking, balling it up in her hands as tight as possible before pushing it into the wide-open mouth of Shamir. A slight moan, that Catherine had to accept was out of pleasure, escaped Shamir’s gagged mouth before the cloth was brought around her lips and tied behind her head to secure the stocking in place. Both ladies were now reduced to nothing more than muffled sounds, inhibited struggling, and two very different emotions surrounding their predicament. But it was finally time for their little game to begin.

And Catherine hated to admit it, but things already weren’t looking good for her. She’d been trying to work the knot securing the rope to her wrists ever since Byleth tied it, but she hadn’t made any progress besides simply brushing her fingertips against it. Her fingers could never get a good enough grip on it to begin unraveling it, and if she couldn’t untie that, then…

She shot a glance over to Shamir, who laid opposite to Catherine on the bed. Her efforts didn’t seem particularly focused, seemingly throwing herself against the bonds as if she was hoping it would somehow untie something, but even then, Shamir wasn’t even using as much strength as Catherine knew she could be. Shamir’s escape efforts seemed to consist entirely of that, as a few gasps and heavy breaths barely made their way through her gag, before she’d suddenly rest for a minute, letting out a few moans before beginning her “efforts” once again.

Progress certainly was slow for the two competitors. An uncountable amount of minutes had passed since the two had first entered Byleth’s room, but Catherine could begin to feel her eyelids heavy and her concentration waver. Being forced into this uncomfortable position, having to throw as much of your strength and energy against it to stand a chance of escaping… that was exhausting, let alone the training the two had done all day long. Byleth could notice their effort flickering, and suddenly announced that the two would be subject to some much needed “motivation” to help their fighting spirits. Catherine watched as the professor approached her first, turning the woman who’s struggles had suddenly doubled onto her side, so that both her front and back would be accessible to Byleth. Her hands wasted no time in pressing against Catherine’s silk bra, simply cupping the knight’s breasts as a flurry of shouts and screams managed their way through Catherine’s gag. The gentle feeling suddenly turned into a deep squeeze, aggressively groping the knight’s fair breasts and even sneaking a few fingers underneath her bra to tease Catherine. Though Catherine shook her entire body in response, it only seemed to encourage the professor to continue her advances further, pulling down the woman’s bra to reveal her nipples, hardened from the raw stimulation brought unto Catherine. She pinched and played with them for only a moment, finally drawing her hands away… though they weren’t removed from Catherine entirely. They slithered along her body, towards her bottom, pulling down on the panties that covered it to reveal the bare, round cheeks hidden away. Straining her head over her shoulder, Catherine could just barely see that Byleth had raised her hand in the air, and all the knight could do in preparation was squeeze her eyes shut and prepare for the impact..!

SMACK! 

The sound filled all three pairs of ears in the room, and it excited two of them. Catherine was left with the stinging sensation pulsating through her bottom, involuntarily letting out a powerful sound of distress through her gag. She toiled against her bonds violently this time, the desire to escape firing up her spirit once more. Satisfied with Catherine’s renewed efforts, Byleth turned her attention towards Shamir, who even after seeing the display brought upon Catherine, did not move an inch in her bonds. Of course, everyone in the room understood why this was, and Byleth was much more gentle with Shamir, two things that were very likely correlated. Her gropes were much more gentle this time, and she teased and rubbed Shamir’s nipples instead of aggressively playing with them. This, of course, came with more sounds that Catherine wished she’d never heard come out of Shamir’s mouth, and a small part of her wished that the two had been bestowed stricter gags to prevent this. Byleth didn’t even spank the sniper, instead using her bottom for more groping and squeezing, only slightly digging in her fingernails for a little bit of pain. Even that seemed to bring a blush upon Shamir’s face, and Catherine simply wondered how this was "fair".

Regardless, the two competitor’s had their energy renewed… one way or another… and their struggles did begin once more. That being said, neither still seemed to find any progress. If this pattern continued, then…

It would be a long night.

*****

“Lady Rhea, I must speak with you about an urgent matter. It revolves around the new professor.”

Catherine had come to the archbishop’s throne, kneeling for a moment before Rhea allowed her to rise. When Catherine’s face returned to that of Rhea’s, she noticed the expression of interest clearly plastered on her face.

“Has something happened to her?” The archbishop simply responded. Catherine took a quick look around to make sure that no other member of the faculty or student was lurking around the area before the knight went further into depth.

“No… well, it’s more of what she did to me last night. To settle an issue between myself and Shamir, she’d set up some type of “escape” competition for us to partake in. Binding us in inescapable ropes-”

“Ropes? And they were tight enough to render even you helpless?” The archbishop’s hand quickly covered her mouth and most of her cheeks after the slight interruption, but Catherine swore she could see a slight blush form over her Lady’s face.

“Y-Yes… but that wasn’t the worst of it. She… she took advantage of this state, touching us in very private places, teasing, groping, e-even spanking me.”

A few heavy breaths escaped Rhea’s lips before she suddenly jolted, remembering to respond.

“I-I see… Thank you for bringing this to my attention, Catherine. I must ask you to tell the professor to meet me in my private quarters immediately. We will discuss this issue in great detail.”

A confused expression came over Catherine’s face. “A-Are you sure you would rather not deal with her in public? Is it really wise to engage with her one on one?”

“Thank you for your concern, Catherine, but I assure you that I can handle myself. I would also ask you to… search the professor’s quarters for the rope in which she bound you two in, and bring it to my quarters as well. It will aid in proving the deed that she did last night.”

“I-I can show you the rope burns as well! They’re just beneath my armor.”

“I believe you fully. I have more than enough trust in you to know that you would never lie to me. Thank you for informing me, Catherine. Now, I will… deal with the professor and resolve this issue.”

“U-Understood. Thank you, Lady Rhea.”

Catherine turned away and began walking out of the church. She tried to push the memories of last night from out of her head as she walked at a quickened pace. Shamir had told her that she wanted to practice, and though it was odd to face her partner after such an intimate night, she didn’t resent Shamir for seemingly enjoying it. Catherine was mature enough to understand that people had different… tastes.

Normally, they’d meet for training right at the outside grounds, but oddly enough, Shamir had asked Catherine to meet her in her quarters first. As Catherine tried to rub her stiff elbows, she wondered why.