Princess Luna awoke to the calming sounds of birds chirping outside her balcony window. The princess opened her eyes, gazing up at the ornamental chandelier that hung from above her bed-- the same one that was decorated in honor of her breasts. She stared at the sculpted metal nipple of one of the large, round-shaped mammaries that were spread out evenly around the decoration, then inhaled, feeling her own bust protruding as she lifted her chest and stretched her arms above her head. After filling up her lungs, she let out a relaxed breath, lowering her arms back down and rubbing them along the bed. Her boobs were exposed and out in the open as she had purposely kept her covers from reaching past them the night before, and from there the princess was able to feel the very fluffy warmth of a particular pony..

Tilting her head downwards, Luna soon began to smile at the sight of her pony friend snuggled in so dearly around her breasts. The mare was laying on her side, squished in-between the middle of two very special parts of Luna's body and resting right along her chest. Her head was firmly nuzzled against the uppermost portion of one of her great boobs-- the same one that her fore-hooves were securely wrapped around. She was cuddling with it like it was a stuffed animal, and Luna reached her hand over to gently stroke the mane of the pony who appeared to be sleeping so peacefully. She looked happier than ever, and Luna's smile grew even wider at the sight of serenity in one of its purest forms.

It didn't take long though before Luna's body caught up with her waking self. The princess drew a labored breath, pressing her legs together from beneath the covers and squeezing her urethral sphincter with a tight, confident demeanor. Unlike what she normally would have done, Luna had strayed from her nightly routine the day before, where she refrained from letting her bladder empty out all of its contents. She could really feel the effects now-- the warm, lingering fullness down at her lower-abdomen-- and a soft groan escaped her lips as she squirmed against the bed. Her need to pee already felt so bothersome, and she couldn't comprehend that she still had over a hundred more hours to go before she reached a week. A ting of stress and intimidation rang inside her mind at the thought, to which she shook her head, trying to push those doubts aside. She would never be able to make it if she didn't simply focus on the now. At the very moment, she could still hold it pretty easily, and so that was what she tried to focus on-- there was no use filling her mind with doubts by thinking too far ahead.

The next thing to catch Luna's attention was the sight of Purella stirring and stretching. The pony's eyes soon opened, to which she locked gazes with Luna shortly afterwards, a small blush filling her cheeks from how close she currently was to her idol.

"G..good morning Princess Luna." Purella greeted, and embarrassed smile on her face as she clutched Luna's breast even tighter in her hooves.

"Good morning, Purella." Luna replied, rubbing her fingers through the pony's mane. "Did you sleep well?"

"Luna.. it was really.. really amazing.." The princess smiled at this and gently caressed the back of the pony's neck.

"I could tell." Luna responded, watching closely as the mare pressed her belly right up against the large breast that she was clutching so tightly. She squirmed almost constantly afterwards, to the point that she appeared restless-- as if something was bothering her as she fidgeted around against Luna's chest. Luna narrowed her eyes at the pony, observing her increasing struggles as time went on. She was rubbing her hind-legs together now, jerking her hips slightly and tapping her hind-hooves against Luna's belly. It didn't take the Princess of the Night much longer to realize what the issue was, and a heartfelt smile grew on her lips afterwards. "Do you need to use the facilities?"

The mare's cheeks immediately flushed bright red at this, and she stopped her movements, opting instead to just keep her hind-legs firmly pressed against each other. "I-I can still hold it Luna!"

"I didn't ask if you could still hold it." Luna rubbed the embarrassed pony's cheek with the palm of her hand. "Do you need the bathroom?"

"I..." Purella paused for a few moments, gazing deeply into the princess's sincere, teal colored eyes. "..Well... no..."

"I see." Luna replied, taking note of the mare's refusal to relieve herself. "Is it more cuddles that you want?"

Purella's ears perked up at this, and she eagerly nodded her head with a smile. "Yes Luna!"

Luna smiled at this, then watched as the mare went back to squeezing and tightly holding the princess's overly-massive breast that was still clutched in her hooves. Her back rubbed against the other breast as Luna watched every desperate little fidget that the pony made during her snuggles, observing each and every twitch, squirm and jitter... She found herself thinking about Purella's slowly filling bladder, where the mare had chosen to hold it despite the increasing urges telling her not to. It was an adorable refusal, and Luna gladly took the time to reach her hand down to pet across the pony's back as she remained tightly held against Luna's chest.

This continued for a short while in silence, where the two lied peacefully in Luna's massive bed-- a bed where, despite its expansive luxury, it was still only second to Luna's breasts in Purella's mind. Luna listened to the sound of the pony's labored breaths, keeping her eyes on her and observing how her head was pressed firmly against the tops of Luna's breast-- something that she was doing either out of embarrassment or concentration. The mare's impulses to pee weren't going to go away though, no matter how much she tried not to think about them. Her bladder was filling and getting increasingly eager to be relieved...

"Are you sure you don't want to go?" Luna eventually asked, watching the pony's restless squeezes with her hooves as if they would comfort her urgent need.

"No.." Purella breathed in deeply and held Luna's breast even tighter in her hooves. Her tail was swishing back and forth now, and so were her hips, twitching and squirming as she fought against her bladder. "I don't need to pee.. I don't need to pee.."

Luna smiled at this and then lowered her hand, rubbing it right along the mare's distended bladder bulge. "Are you sure of this?"

Purella gasped, tensing her hind-legs and looking at Luna with wide eyes when the princess's hand made contact right across her bladder. "I.. I'm really sure, really! I'll show you how sure I am!"

The pony finally let go of Luna's large boobs, and she watched in curiosity as Purella scooted backwards along Luna's body, seemingly unintentionally sitting her flank down right on-top of Luna's bladder. The princess immediately tensed, her eyes widening and her fists clenching against the sides of her body. She pressed her legs hard against each other from underneath the covers, clenching her muscles down there as hard as she could-- but yet she remained quiet about the whole thing, determined to look confident and in control, showing nothing other than a stern, stressed-looking expression. The pony fidgeted her own struggles against Luna's bladder, and then in a sudden and risque action, spread her hind-legs wide apart, recklessly taking away the support of her hind-legs and leaving her fully-presented marehood isolated to hold it all in by itself. She held her breath and looked down at her own exposed pussy, keeping her hind-legs as far apart as she could manage and as confident as she could present herself, knowingly showing off her now blatantly obvious bladder bulge as well as the thick outer-lips of her marehood. Luna's eyes went wide at the display, and her gaze fixated directly at Purella's plump lower-lips, which could almost be seen visibly quivering from the effort she was putting out by holding on in one of the most fragile of positions.

"I-I can.. hold.." The pony muttered and then scrunched her face up, appearing more and more strained with each passing second. She gazed down at her pussy and quickly began to fidget, soon resorting to simply squeezing her eyes closed and clenching her urethral sphincter the absolute hardest she could, trying her best to stay in her position for as long as she could. "Mmn..!!" Her hind-legs trembled and her folds looked firm and tense-- the very place Luna was looking right at with wide, shocked eyes when pee began to sprinkle out from right there in little droplets. The pony immediately gasped at this and slammed her hind-legs back together with an audible smack, squirming and bouncing up and down violently against Luna's bladder. She focused nearly all of her concentration on clenching her muscles down there to the max, quickly crossing her hind-legs and jerking them up and down as she tried everything she could think of to help hold it all in, but Luna knew she had pushed herself too hard and was now at risk of a mare wetting herself right on her bed.

The Princess of the Night quickly sat up, nearly losing control of her own grip on her bladder due to Purella's constant thrashing around right on-top of it. Luna gasped and frantically reached a hand in-between her thighs, clamping the palm around her vulva and giving it a desperate squeeze.

"I CAN'T HOLD IT!!!" Purella yelled out with a squeak. Her hind-legs were trembling and crossed as tightly as she could get them. Her plump marehood was squished between her thighs, but it felt like there was nothing she could do to stop her pee from trickling out despite how hard she was trying to squeeze. Luna quickly wrapped her other arm around the wildly squirming mare, standing up off the bed and hurrying towards the bathroom with her other hand still tucked between her thighs. She ran past the open doorway, and as soon as she was able to, she placed the pony down in the bathtub.

"You can relax." Luna spoke. Hearing the princess tell her to relax was all it took to finally give in, and she lifted her tail, barely raising it in time before holding her head back and letting it all flood out. The mare's pee poured out at full force into the drain, and she closed her eyes, panting and shaking at the feeling of finally obeying her bladder's fierce demands.

"A-ahhh..." Purella's hind-legs lightly shivered as pee cascaded down from her marehood above-- the same place that had been absent of pee for so long was now completely covered with it. She lowered her head and stared down at the bathtub below, idly listening to the sound of her pee streaming down below. To finally be able to let go felt heavenly to the mare... and she closed her eyes, trying her best to keep standing and not completely collapse from the total relaxation. Her lower-abdomen tucked in, further coaxing her bladder to eagerly empty all of its contents. It wasn't until a little over a minute passed before her stream eventually slowed down to a stop.

"Ahh..." The pony opened her eyes, staring blankly at the tub below her. She tensed the same exhausted urethral sphincter she had been using to hold it for so long, squeezing out the last few droplets of pee before turning around, watching the remainders flood into the drain. Despite the total relief, she still felt a little guilty at what her actions had caused. "I-I couldn't hold it Luna..."

Princess Luna, meanwhile, was on her knees next to the tub, with her legs pressed together and a hand still cupping her vulva. Her bladder had not been happy to witness this, but she had held on regardless, keeping her urethral sphincter securely clenched. "You tried your hardest, clearly." Letting go of her vulva, Luna brought the same hand over to stroke through the pony's mane. "You held on until you reached the bathroom, and although you made a small bit of a mess.. it is nothing to worry over compared to the amount you poured down the drain."

The mare blushed as she listened to Luna talk. "I guess so... I-I really thought I could hold it though otherwise I wouldn't had done what I did!"

"It happens to all of us, Purella." Luna smiled and watched as the pony sat down. She had caught her breath by now, and stared blankly at the drain for several seconds before turning to look at Luna. The princess in question was kneeling high enough for her royal boobs to be resting along the side of the bathtub, and after seeing Purella begin staring at them, she smiled. "I need to start my day now, however."

Although looking disappointed, Purella nodded, slowly standing back onto her hooves. "Okay..." She brought her gaze upwards, and the two made eye contact for a few moments before the princess took hold of her and lifted her out of the tub. Luna fixed the pony's messy mane slightly after setting her down, and then she stood up, listening to the next words to come out of Purella's mouth. "I just don't understand..."

"What is it you that do not understand?" Luna asked, looking down past her protruding boobs to see her pony friend.

"It's just that... I didn't even hold it for that long but I ended up really.. really... needing to pee. I can't imagine ever being able to hold it in for an entire week... Are you really that amazing Princess Luna?"

Luna blushed a tiny bit at this. "Anything can happen between now and a week's end."

"I think you'll hold it Princess Luna!" The mare smiled up at Luna with seemingly no doubts in her mind. "I think you are that amazing!"

Luna stood silently for awhile, not entirely sure of how to respond to the compliments. "...We will see." She breathed in deeply, standing with her legs tense and straight. She wasn't feeling as confident in herself as the pony was in her... and she knew she would have to if she stood any chance of reaching a week. Luna gazed at herself in the bathroom mirror for a few moments, before instead focusing on the day still ahead of her.

Author's Note

No unedited version because this whole segment is branched off from the original story