Chapter 7 - Catherine/Byleth + Rhea B Support

Catherine grunted as her sword crashed into the training dummy again and again, clad in her characteristic plate armor which rarely felt so heavy. Strands of her blond hair now clung to her sweaty face which glinted in the twilight. She had come down here hours ago and threw herself into mindless exertion alone, she had needed to free her mind after seeing Byleth and Rhea speaking together, both with affection in their eyes. She couldn’t escape, it seemed, as recently Byleth had arrived to instruct a student. She grunted too loudly with each blow. Unfortunately, it didn’t seem to faze Byleth who continued talking to Ignatz.

Byleth’s attentive look and hint of a reassuring smile as she talked that weakling through intermediate sword forms was sickening. The way her now green hair shone, so similar to how Lady Rhea’s perfect locks gleamed in the light, was another painful reminder of how close they had become. A reminder of how she had somehow done in a few months what Catherine had failed to for years. Even Byleth’s clothing were now a distortion of the Archbishop’s. The way it emphasized her ridiculous breasts and thick thighs lacked the dignity of the Archbishop’s vestments. 

Harder and harder Catherine slammed the wooden sword against the dummy but all she got was a nervous glance and series of winces from Ignatz. Byleth was only concerned with her students as she always was, except around Lady Rhea. Month after month her resentment for Byleth grown. Little more than a month had passed since the Captain’s death and Byleth was already back to being more at peace with herself than Catherine had ever been. It was unbearable and with Byleth so very close she couldn’t stop herself. She couldn’t stand Byleth’s satisfaction, how oblivious she was to the suffering she caused. Catherine drew back and threw the training sword as hard as she could. 
 
Byleth should not have been able to dodge it but of course she did, receiving only the shallowest of cuts along her cheek before the sword slammed into the wall behind her, splintering from the force. Ignatz, though untouched, was the one who reacted. He yelped before stumbling away from the sudden impact. He glanced to Catherine, terrified, and said “I, uh, Professor I have to go!” He didn’t even wait for Byleth’s nod before fleeing the scene. Byleth looked to Catherine with worry and confusion. Her expression held no malice, the purity of her concern was sickening. Catherine gave a nod as she tried to play it off “I was trying to catch you off-guard, but you managed to dodge it! Not too shabby, Professor!”
 
Byleth was still processing the assault, she touched her cheek and looked at the blood on her finger as she replied, “That wasn't funny.” Seeing the blood, Catherine failed to hide her sadistic grin, she replied glibly “Oh, come on. Look at the blade I threw. It's just a wooden training sword. At worst, you could have gotten a bruise, or perhaps a splinter. Let's agree it was funny and move on.” Byleth, tired of Catherine’s prevaricating looked her right in the eyes as she questioned her “No Catherine, something has been bothering you and we both know it. I should have said something before this happened… Is this about Rhea?” Catherine returned her stare, steely-eyed, before she gave her retort “It is. What will you do about it?” Byleth replied simply “I will take you to her and we will settle this.” 
 
Catherine scoffed and shook her head, looking away as she folded her arms beneath her breasts. But after a moment of consideration she realized she cared for nothing she had to lose. Looking back to Byleth she nodded before they made their way to the quarters of the Archbishop. The various guards on patrol didn’t question Byleth and Catherine as they stormed through the halls of the monastery. Alois gave a worried glance but was placated with a meaningful look from Byleth.
 
Catherine for the first time burst through Lady Rhea’s door, she needed to have this over with. As the door slammed into the wall Rhea looked over from her desk at the disheveled, sweaty Catherine and was for once at a loss for words. Rhea saw Byleth following behind with a look of concern on her face, eventually Rhea asked, “What is amiss?” Catherine looked uncharacteristically anxious, adding to the strangeness of the situation. She looked to Byleth who nodded before Catherine finally began to speak “Lady Rhea I need to know. Why do you reserve your affection for her? What changed, from the moment she arrived you allowed her closer than anyone. What do… I lack.”
 
Realizing the nature of the situation Rhea’s countenance began to reflect an emotion that Catherine had never imagined she would see. A smile that, in addition to Rhea’s typical beatitude, held great relief. Rhea could see the old patterns, remembering how before humanity had betrayed them mankind was not kept at arm’s length. How those most worthy would come as supplicants and be given a just reward. Every day she saw more of the Goddess in Byleth, especially since she had received power from Her, bringing Catherine here was yet another gift from Her. Another affirmation of Her return. She knew now, more than ever, that they would find their salvation in the holy tomb soon. Rhea replied, still beaming, as she walked towards Catherine “Dear Catherine, you lacked nothing. It was I who lacked the heart to open myself to another. The heart to acknowledge your bravery, loyalty, and beauty. The heart to give you your just reward.” Arriving in front of Catherine Rhea drew her into an embrace as she kissed her tenderly.
 
Catherine’s arms hung limply at her sides, her eyes staring past Rhea’s face now so close to her own. She struggled to accept this. For almost a year she had seen Byleth and Rhea grow closer and closer. Stalking Byleth at first until it grew too frustrating when she discovered the nature of their… relationship. She had come to realize that Garreg Mach felt as much a prison as Faerghus had. That her condemnation of Christophe had served a woman that might have never really cared for her. She was so happy to be wrong. Rhea had proved again why she deserved worship, why Catherine didn’t deserve her.
 
Relief washed over her as tears began to roll down her cheeks. She returned Rhea’s embrace as she pulled away from the kiss, sobbing into Rhea’s shoulder. Four years since the Tragedy, four years since she had held or been held by someone she cared for. Catherine cried as Rhea held her, freeing Catherine’s hair from her ponytail as she began stroking the blond locks. As Catherine clung to Rhea, pressing her almost painfully tight against her armor, Rhea began to sing. 
“In times flow...see the glow, of flames ever burning bright…
on the swift...rivers drift, broken memories alight…”
As Rhea’s voice trailed off Byleth smiled at the scene, though the significance of the song was still not entirely clear to her she didn’t care. Rhea would tell her everything when the time was right. 
 
Soon enough Catherine regained her composure, eventually raising her head and tentatively kissing Rhea. Rhea returned the kiss as green light overtook their clothes which vanished. Now nothing was between them. Catherine’s body was freed of not only her armor and clothing, but all the grime and sweat of training for hours. Finally free, she simply ran her fingers through the vibrant green locks of Rhea’s perfect hair and across her immaculate skin savoring the moment. She inhaled deeply of the white lily scent which always pervaded Rhea, adding to the euphoria of the moment. Rhea was not so restrained, caressing her way down the firm muscles of Catherine’s back. Soon reaching a hand down to grasp one of the rounded cheeks of Catherine’s toned rear. Catherine moaned into the kiss, immediately flushed as she clung to Rhea. Rhea’s perky breasts pressing down into her large pair had her shaft hardening quickly and soon Catherine felt her rod pressing insistently against Rhea’s own. She pulled back and to her chagrin saw that Rhea was clearly larger than even her own formidable endowment. 
 
She didn’t have long to contemplate this as Rhea quickly spun around, bending over before placing her hands on her bed. In doing so she presented the perfectly wide hips and thighs that framed the rounded spheres of her weighty ass. Catherine’s breath caught, so close to what she had desired she hesitated. Sensing this vacillation Rhea cast a reassuring smile over her shoulder and nodded, swaying her broad hips slightly. Remembering herself Catherine’s large breasts jiggled as dropped to her knees, reaching out to caress the enormous cheeks before her reverently. Rhea sighed as Catherine became more comfortable soon kneading the powerful weighty globes which she had for so long been pined for. Finally, Catherine’s head darted forward as she drove her tongue into the perfect, round rear she still zealously kneaded and caressed. Rhea moaned at the sudden intrusion before she sighed as Catherine continued her worship. 
 
Eventually though Rhea needed more, she reached back and grasped Catherine’s blonde hair lifting her. Catherine understood, rising, grasping the robust hips before her as she positioned herself. Rhea began to slowly impale herself on Catherine’s turgid rod as Catherine drove forward. They both moaned as Rhea’s fat ass stretched to accommodate the girthy cock which reached deeper and deeper inside her. Rhea moaned and clenched at huge dick filling her, her own fat cock beginning to drool onto the carpet below her. Catherine bottomed out and they both let out shuddering breaths. She then drew back before moaning as she began to deliver long, powerful thrusts which shook both of their ample breasts. Rhea rolled her wide hips, sighing as she added to the jiggling of the weighty cheeks of her huge rear, stirring the thick rod around inside her.
 
Catherine reached forward and grasping both of Rhea’s breasts as she delivered a series of deep, rapid thrusts. Rhea threw back her head and moaned as her thick rear shook with the impact of Catherine’s powerful thrusts. Her arms dangled at her sides as Catherine’s strong arms held her up, squeezing her jiggling breasts. Catherine grunted and sighed; her bronze skin gleaming with sweat as she continued slamming deep into Rhea. Eventually it was too much, Catherine wailed as she began to pound rope after thick rope deep into Rhea. Rhea concentrated on rolling her hips as she allowed Catherine’s thrusts to push more and more seed from her fat cock. She sighed as she clenched down on the fat cock filling her, unloading her own load across the bed in front of her.
 
Catherine panted as she barely held Rhea, the exhaustion from training and now this washing over her as she came down. Looking back Rhea saw this and kissed Catherine. From the kiss a sublime warmth spread through Catherine who allowed Rhea to take control. She barely registered Rhea repositioning her as she enjoyed the profound relaxation that soothed every muscle. Catherine laid on the bed supine as Rhea straddled her facing away. Rhea glanced over her shoulder smiling as she saw Catherine’s blond hair fanned out around her adoring grin and glassy eyes.
 
Reassured, Rhea sighed as she began to impale herself on the Catherine’s fat cock which had grown even harder. As she hilted herself she took a moment to savor the feeling of fullness before she began to ride Catherine. Rhea’s thick rear shook as she swung her hips up and down the rigid shaft. Her own fat cock leaking a steady stream as she moaned and sighed. Catherine whimpered as the enormous globes of Rhea’s ass crashed into her hips again and again, shaking as they devoured her girthy tool. Rhea moaned and groped her rounded breasts as she drove Catherine into her. Catherine began to match Rhea’s rhythm, releasing shuddering breaths as she drove up every time Rhea descended. Faster and faster they went until it was too much for Rhea who wailed as her dick fired thick ropes across the bed in front of her. Rhea held herself high enough so that Catherine could continue driving up into Rhea’s fat ass which jiggled in response to the relentless thrusts. Faster and faster Catherine surged until she cried out, filling Rhea a second time, thrusting even faster as she pushed her load deeper and deeper into Rhea.
 
Catherine lay there for a time, utterly insensate, until she was roused by shaking of the bed and Byleth’s piercing wails. Byleth’s small dick shot thin ropes of seed, one reaching up to the cleavage of her large breasts which shook from the power of Rhea’s thrusts. Rhea caressed Byleth’s legs which where over her shoulders as she stood at edge of the bed, her expression one of affection and desire as she gazed down upon the overcome girl. Rhea’s pointed ears, exposed for the first time, raised no questions for Catherine. They only added to her otherworldly beauty. Byleth’s rear shook as Rhea’s huge balls crashed into her reddened ass with ever powerful thrust. The display quickly had Catherine hardening again. Byleth noticed this as she heard Catherine stirring and gave her a seductive look as she pressed her round, jiggling breasts together. 
 
Taking the hint Catherine scrambled across the bed and mounted Byleth’s toned midriff. She seized the huge tits that had taunted her for so long and, using Byleth’s own seed for lubricant, began to thrust between them. Byleth mewled and whimpered, clutching the bed beneath her as her toes curled and her rod leaked. Rhea thrusted even quicker as she admired Catherine’s powerful, round ass clenching and shaking. Completely taken and overcome Byleth reached her second peak, spewing most of her seed across her stomach as she wailed. Feeling Byleth gripping her fat cock again sent Rhea over the edge who hilted herself and sighed as she filled Byleth’s rear. Catherine drove against the big breasts faster and faster until she was close and then rammed herself down Byleth’s throat, unloading as she moaned.
 
Catherine eventually pulled out, gasping as she leaned over Byleth who panted into the fat cock that now pressed down against her face. Catherine heard Rhea mounting the bed and soon felt Rhea seize her breasts as Rhea’s huge dick sawed between her cheeks.  Rhea sighed as Catherine gasped, her ass slowly stretching to accommodate Rhea’s fat cock. Catherine’s unattended rod drooled across Byleth’s face as she whined. Fully hilted Rhea enjoyed Catherine’s erratic clenching before rolling her off Byleth. Catherine collapsed prone, gasping and moaning as Rhea immediately began reaming her from behind. Every time Rhea drove down into Catherine her huge balls smothered Catherine’s smaller package which leaked across the bed behind her. Catherine’s round ass jiggled with every impact of Rhea’s broad hips. Catherine squirmed and only occasionally bucked back, overwhelmed by Rhea’s size and power. She wailed down into the blankets, clutching the bed, firing her load across the bed behind her. Rhea drove in deep and sighed, unloading as she caressed Catherine’s back, enjoying the way Catherine’s clenching rear milked her. 
 
She withdrew her fat cock from Catherine’s ass with a pop, provoking a yelp from Catherine whose rear began to leak. Catherine groaned as Rhea rolled her onto her back. Her face was touched by adoration, gazing hazily up to the archbishop who smiled in turn. Rhea spread Catherine’s legs before sighing as she plunged her huge dick deep into Catherine who whimpered at the sudden fullness. She leaned over and held Catherine’s hands, kissing her as she began to quickly pound Catherine. Rhea’s thick rear tensed and shook as it drove her rod deep into Catherine again and again. With every thrust Catherine moaned and yelped as Rhea’s sack crashed into her reddening ass. Her toned midriff was slick with her own seed as Rhea’s rod drove more and more from her. Her legs bobbed back and forth, her toes curling as the ecstasy built. Catherine broke the kiss, threw her head back, and gave a ragged cry as she unloaded one last time across her own toned midriff and shaking breasts. Rhea’s own peak spurred her to drive faster and faster as she roared, pushing her seed deep into Catherine. They both panted as they came down before Rhea pulled out, and collapsed next to Catherine, holding her as they both joined Byleth in a deep sleep.