There was a knock on Phineas's bedroom door. "Hey, Phineas." Isabella poked her head in shyly. "I got your text that you wanted me to come over. So, what'cha doin'?"

He lifted his head from his pillow where he lay resting in his lifeboat-themed bed. "Nothing. Absolutely nothing. And until my broken arms heal, I have no choice but to continue to do nothing."

She took another look at the two casts cradling both his arms from above the elbow down to his fingertips. "I sympathize," she offered, taking a seat at his bedside. "I haven't ever broken a bone, but due to my first aid training, I understand it's quite a bummer."

He snorted. "You got that right. First off, the pain of initially breaking them was excruciating, then the doctors had to reset them back in place, which was ten times worse. Once the pain ebbs down to a dull ache, the worst part is having to sit around for a whole month, waiting for them to heal. No inventing, no fun, nothing. I wouldn't wish this on my worst enemy, if I ever was to have one." He let his head hit the pillow again, frowning dejectedly. "All because I fell off that waterslide Ferb and I built on Tuesday."

"That does sound awful," Isabella said.

"Yeah," Phineas said with a heavy sigh. He carefully sat up, taking care not to put any pressure on his sore arms, using only his stomach muscles, swinging his legs, and shifting his hips so he could sit next to her properly. "It would have been one thing if I had only broken just one of my arms," he continued. "Then I could still use my other hand, at least. With literally no hands, though, everything you take for granted becomes almost impossible. Eating, brushing your teeth, going to the bathroom..." He gestured half-disgusted with his casts. "Ferb is working on an invention right now that will at least help me put my clothes on in the morning, since he's tired of taking turns dressing me with Mom. I even have difficulty texting people."

"Oh my gosh, I'm so sorry, I had no idea!"

"Needless to say, it sucks. And I'm usually the optimistic one."

The Fireside Girl took compassion on him. She put an arm around his shoulders, saying, "Phineas, if you ever need anything, you know I'm right here."

After enjoying the touch for a moment, Phineas said, "It's funny you should ask..."

"What's up?" Isabella looked into his eyes.

He hesitated and blushed. "It's..." He cleared his throat, noticeably uncomfortable. "Isabella," he finally said, "w-we're best friends, right?"

"Yeah?" She said, not sure where he was going.

"And we can talk to each other about, um, anything, right?"

"Of course," she said immediately.

He was shifting and squirming. "You have to swear you won't tell anyone about this. Promise?"

Now she was worried, but also extremely curious. "Okay. I promise."

He gave a heavy sigh. "Alright," he said. "I'm just gonna say it. Isabella, I need your help with something very badly. It's, really embarrassing, and I never thought I would be telling anyone this, but it's driving me crazy. Like, literally, crazy!" He stopped to catch his breath. "Before I broke my arms, I-" He stopped, then tried again. "When I could still use my hands, every day I would... I would-" His face turned red and he looked away. She felt him shudder beside her.

"Why's it so hard?" He asked. "Bleh. I can't say it." He slouched in embarrassment.

"You would what?" She asked. "You built inventions? You played the piano? You diced onions? Drove your truck?"

"Well, yes, but none of those are what I'm talking about," he answered.

"Then what?" She prodded. "Spit it out!"

He sighed audibly, and stood up to walk a pace away from her. "I did bad things," he finally admitted. "I - masturbated - every day."

The room went dead quiet.

He didn't dare to look at his crush's face. He was blushing too hard, and he knew it. Not to mention, although he wouldn't dare say it, she was the person he thought about when he did his daily deed...

As soon as he said that word, Isabella's heart began racing. The boy she had been in love with but who was totally oblivious to her affections for all these years had just caught her completely off guard. It was a good thing he was facing away from her, because she figured her face was probably redder than his hair, she was blushing so much.

Now that it was out, he finally turned around and dropped to his knees. The rest just flowed out like a waterfall. "Please, you can't tell anybody! Not even Ferb knows! I'm sorry to be telling you like this, it's just that I'm sooo horny, all the time, and I can't help it! I just can't focus on doing anything else until I do it! And then both my arms broke, and now I can't do it anymore! Because first off, my casts are too scratchy, so it doesn't work very well, and secondly, I have no grip strength, so I really am incapable. This is what I'm asking you for, Isabella. I haven't gotten off in four days! It's driving me insane! I promise, I'll do anything for you if you help me with this! I'll help you get any Fireside Girls patch you need, or make you any invention, or even be your personal servant, once my arms are healed, of course. Please, Isabella, I'm begging you! And I'm not asking to have sex, or anything like that. I'm just talking, like, a simple hand job. That's all I want. You have no idea how hard it is asking you this, but I'm at my whit's end, my hormones are going completely bonkers, and there is honestly nobody else I can turn to. Oh, Isabella, won't you please?"

The term "like a deer in the headlights" perfectly described Isabella's face right now. Not to mention that her innards were turning to a horny gooey mess. She could feel the heat between her thighs turning up with every single one of the boy's sentences. Now she was probably wet, too.

When she didn't respond immediately, Phineas blushed even harder than before. "Oh, I'm sorry, what am I saying? That's ridiculous." He stood back up and pointed at the door. "Sorry, Isabella. Can you just leave and pretend we never had this conversation?"

When he stood, she couldn't help but look at his zipper. He wasn't lying, it would appear. It looked like he'd been as turned on by admitting to her as she had been. The bulge was obvious.

One thing was certain, though. Isabella knew that she finally had him right where she wanted him. She quickly came up with a plan.

She stood up, pretending to leave, as he asked. Then, with a dramatic flair fit for the theatre, she stopped right at the moment she was twisting the doornob. "Wait," she said, turning to face him. "If I do this, you promise you will do anything?"

"Anything." he said. A fleeting hope came to his face.

Inwardly, she was feeling exactly the same. "Okay." She clicked the door locked instead.

If they weren't in casts, Phineas's hands would have been shaking with nervousness as she approached him. She stopped an arm's length away, trying to figure out how to begin, he assumed. He realized, just then, he didn't know what to do, either. After all, his only resume of sexual experience was his alone time. Being with another person, especially the hottest girl in school, who he liked, was so different. Which was scary. And exciting.

"So," he said, "this is more awkward then I thought it would be. You do, um, know how to do it, right? Because now that I think about it, I guess I sort of made that assumption in haste-"

"Shut up," Isabella, said, rolling her eyes. She pushed him towards the bed, and he sat down obediently. Now that you mentioned it, her fingers were shaky too, as she unpopped the button of his blue cargo shorts, unzipped the zipper, and tugged them down by the waistband. She did it all with great concentration, trying not to touch his body yet, any more than possible to manipulate the clothing. To think that she was mere moments away from seeing Phineas naked was almost enough to make her lose all motor function entirely. Being this close to him didn't help either. After all, her face was just inches away from his groin, and she still felt that bulge anyways when she brushed against the zipper!

He shifted from side to side to let his shorts slide past his buttocks and down to his ankles. She pulled his feet through and tossed the shorts behind her for good measure. He leaned back, expecting her to give his boxers the same treatment, but instead she kneeled down between his knees and slid her hands slowly up his thighs. She stopped at about the halfway point between the length of his boxers and his hips, just to watch. Already, he was pretty much fully erect underneath. A small part of him was peeking through the "pee hole" boy's boxers had, and she pinched the sides of the fabric and pulled, widening the gap, so that it slid part of its way through. Isabella was now inches away from Phineas's exposed penis.

"Hm, you're smaller than I expected," she teased.

"I am?" he gulped.

"Yeah, see? Just my one hand is bigger than it." She curled her fingers and thumb around his penis from the tip to where the boxer slit was, covering all his exposed skin. It was very warm.

"There's more underneath my boxers, you're not covering it all," he said in his defense. Man, even just her touch felt amazing! And she wasn't even trying to stimulate him, yet! Then again, after four days of not masturbating, anything felt good.

"Oh, is that so?" She said. "Well, then why don't you lie down properly so that it stands up better? Then we'll see." She let go, and he felt a throb of regret, missing her warmth already. So he quickly did as she said, resting his casted arms back against the headboard of the bed so they were out of the way.

Isabella climbed seductively between his legs, bowing to his statue with her rear end pointing straight up in the air. She slid her fingers into the elastic waistband of his boxers and slowly pulled them down his hips. Knowing that they would stimulate him as they pulled back on him, since he was still sticking through the hole. He raised his legs so she could take them all the way off, moaning when they pulled on his sex organ, then spread them wide again around her.

Now as he lay, he was standing firmly upright. Isabella curled her fingers around his shaft, from the base of his pelvis, this time. His head just poked out above her thumb. "No, you're still only five, maybe five-and-a-half. Nothing special."

"Ah, but it's not the size of the dog in the fight, but the size of the fight in the dog."

Isabella smirked. Then she squeezed. Just a little tightly.

"Ah!" He gasped in pleasure.

She saw the sheen of a dribble of pre-cum leak from the tip. She dabbed her thumb in it for lubrication, and started rubbing small circles in the nub on the underside of the pink flesh. He oohed in satisfaction. She let more of her fingers, then eventually her whole hand, begin sliding up and down in a staccato motion.

To him it seemed that having someone else touching him felt far better than doing it himself. He hypothesized that this was because he couldn't subconsciously predict where the sensation would be coming next, which was somehow highly arousing.

Pumping faster now, the bed was starting to shake just the tiniest bit to the rhythm of her pumping. "That feels amazing!" he said, panting. Isabella also was sure now that her panties were going to be soaked soon, if they weren't already. She was enjoying herself just as much as he was. And to be honest, she didn't care that he was average-sized. She just liked teasing him about it.

His head was leaking faster now. It hadn't even been two minutes, and he was already this close to orgasm? Isabella was hoping to enjoy this for just a little longer, but she also had a surprise in store for him and she didn't want him to ruin it by coming too quickly. "If you think this feels good, just wait until you see this!" She stopped pumping for a few seconds, making sure she had his attention, and also to feel him throb from both loss of stimulation and out of anticipation. As soon as their gazes met, she stuck out her tongue and licked the bulging urethral channel running up underneath his member from the lowest point all the way to his tip, stopping to swab at the juicy orifice.

"Oh my gosh!" Phineas burst out. The shiver that ran down his spine at her action shook the whole bed.

Never severing contact, she brought her lips down the rest of the way and further, licking and sucking his circumsized head while gently rocking his shaft with her hand. He was definitely close now, so she went very slowly and softly, trying to see if she could hold him off a bit longer.

"Go faster," he said, waiting in anticipation to climax. "I'm almost there!"

That just made her stop. "You know," she said thoughtfully, as if to ignore his command, "I think I found my new favorite summer activity. Sucking your cock-sickle!" With a grin, she went down on him all the way, no holds barred, mouthing him all the way as far as her mouth had space. She could almost reach the base of his manliness with her lips, if she could just overcome her gag reflex, she'd be there! She slid her tongue all around as she bobbed back down again and again, lubricating him, making her way closer and closer to completely enveloping him with her mouth. Five, six, seven times, she went deeper and deeper, finally losing count. With one last push, she went all the way, with Phineas now thrusting up into her, and she swallowed him down to his pelvis. Her throat clenched around his sensitive area tightly, and with this final burst of stimulation, he spewed his semen down her throat with a great moan of ecstasy.

She held him in for as long as she could hold her breath, letting him ejaculate his entire load down to where it's never coming back up. After some twenty seconds, he was slowing, his moans quieter and his breathing slower, and his penis softening and relaxing, easing back into her mouth so she could breath again, and give her a taste of the liquid riding on his final few contractions. She finished the job by slurping up what was left like a straw, leaving no trace and no mess on the bed for him to have to clean up or explain to anyone, until he was fully shrunken for recovering.

"That. Was. Incredible." He said.

"Glad to hear my services were satisfactory."

He looked at her through lidded eyes. "If I didn't know any better, I'd say you've done this before."

She shook her head. "Nope. I guess I'm just a natural." Although, she didn't say it, she learned from watching porn and reading fan-fictions. She then slithered upwards until she was laying on him and kissed him, not hesitating to go full tongue as soon as he accepted it. She didn't hold back as she traded her saliva for his, then knotted their tongues in an electric embrace.

When they finally broke apart, she giggled and nuzzled into his cheek. "Now that is what I've been waiting for all these years."

Helooked into her eyes. "What do you mean by that?"

She sighed quietly. "I guess it's my turn to admit some things. I've had a really huge crush on you ever since we were kids. I've always dreamed we would do something like this someday."

"Really?"

"Yep."

"I had no idea." He paused for a moment. "I have had a crush on you too, ever since middle school. Maybe even before, but I don't know if I understood my feelings that well back when we were kids."

"Aww." They kissed again, relishing in their moment together. "I am so happy right now," Isabella said a bit later.

"Me too."

"You know what would make me really happy?"

"What?" Phineas asked.

She grinned widely as their noses touched. "Going back for round two."

"I don't know if I can," he hesitated. "That was a really big one to have to come down from. I might need to rest a little longer."

"Or, you might just need a little extra motivation." She sat up, straddling his hips, and slid the straps of her pink dress over her shoulders and down her arms, then took her white undershirt by the waist and lifted high, pulling it all the way off and leaving only her bra remaining. "I imagine these will do."

"I think you just might be right," he said, his eyes getting big.

Tossing her shirt aside, she gave her bra the same treatment. Putting her breasts on full display for her new boyfriend. From her position, she could tell it was working, she felt something start to press slightly against her behind. She rubbed her breasts and pinched her nipples, giving him his personal show, getting her nipples to stick out, giving herself some of the pleasure. It turned her on just as much to rub her flat, toned stomach, imagining she could feel Phineas' loins climb into her belly via her vagina...

Phineas had a lustful look in his eyes. "Oh, how I wish I could hold those," he informed her breasts, lamenting his useless hands.

"You'll get your chance, but for now, you are only getting the appetizer." She said. She rose to her feet on the bed, still standing over him, letting him see up her skirt, which she unbuckled and kicked off, so that she was standing over him in just her panties. Her crotch was totally soaked now, so that their hot pink color became a darker burgundy at the borders of her genitals. She turned around and knelt again, assuming the 69 position by lowering herself to his face and bending over so her mouth could reach his groin. However, she let her fingers dance over his still hardening phallus, preferring to watch it stand on its own in response to her teasings. It didn't take long, now, as he started to slide his tongue up and down her nook, and her spine shivered in pleasure. Returning the favor, she pulled his penis sideways and licked it all along its side, depositing enough saliva that she could now pump it with practically no friction.

Behind her, Phineas gasped, and he lunged his hips upward into her caressing. She was slightly annoyed that he had removed his tongue from her genitals, which had felt so good, but the girl pushed through it, realizing that she must have been driving him out of his mind if he couldn't even focus enough to do his part for her. By the time her initial deposit of saliva was evaporating, she transitioned seamlessly from hand to mouth, bobbing up and down a few times, then licking his whole length, then going back to sucking on it some more, then lifting her other hand to tickle his scrotum.

He still wasn't getting as hard as he had been the first time, but he was being more noisy this time. His head swiveled back and forth, moaning each time he did so, having completely forgotten he was supposed to be stimulating her. She solved the problem, without ever taking her mouth off of him, by slipping her extra hand down between them and massaging herself over the damp cloth. That helped, but she decided it was time to take the panties off. She let his penis slide out of her mouth with a pop and took a moment to yank them down her legs. Then she moved back exactly how she was, accepted his penis back inside her lips, and finally started stimulating herself by tracing circles on her sweet spot. She hadn't had her most sensitive area, her clitoris, touched until this moment, and holding off for so long had only ramped up its sensitivity! She had no doubt this was the most aroused she had ever been in her life.

For Phineas this was the first time he had seen female genitalia in real life, aka not diagrams in his biology book. He'd never watched porn, he knew he'd get caught by Ferb eventually, that man was just too good with computers. And now he was getting a close up look, watching Isabella deftly use her fingers to pleasure herself. And just above, was her nude, pink fanny, arched beautifully into the air. The two cheeks were spread wide so he could gaze upon her dark, button-shaped butthole, it clenched and softened slightly but noticeably with her pelvic floor muscles as their tension continued to march towards consumation. Between his full view and Isabella's good work on him below, he reached an elevated level of arousal that overpowered his fatigue. He swelled to being fully hard within seconds, and quickly felt another orgasm approaching. At that moment, Isabella's index finger went from her clitoris to her vagina, and slipped inside past her second knuckle. That beautiful sight pushed him over the edge. He imagined his penis entering her, finding it's grand purpose as the instrument of both their pleasure. Wondering what the walls of her pelvic muscles would feel like, tightly enclosing his extension from all sides. What his hardness would feel like to her, pushing for space inside her lower abdomen, spraying his seed into the nether reaches of her belly. With that thought on his mind, he cried out, "I'm gonna climax!"

At the same time, Isabella had removed her fingers from her clitoris because it was too sensitive, opting to push in and out of her entrance. She was getting close to orgasm, too. When Phineas cried, "I'm gonna climax," her excitement reached a fever pitch, anxiously awaiting a second drink from her new personal drinking fountain. It was like drinking milk from a very large, suckable nipple, she thought. From his penis, warm liquid gushed into her mouth, where she swished it around without swallowing, knowing that this stuff in her mouth would make her pregnant had it entered the orifice her finger was pushing in and out of. Said stimulation was paying off also, now she was seconds away from coming herself. Her lips were still pressed on his throbbing penis. She increased her finger speed and swallowed all of his semen at once, moaning at the sensation, loving the feeling that what was once a part of Phineas was now a part of her.

That did it, she came! Wave after wave of euphoric bliss hit her, smashing her brain with an overload of dopamine. She tried counting her contractions, but was so blown away she couldn't even make it past three. Every contraction wracked her body with uncontrollable pleasure. She collapsed over Phineas' body, unable to hold herself up, unable to do anything, until multiple waves had washed over her, finally giving her a chance to catch her breath. The intensity of her climax ebbed away, leaving them both drained physically and emotionally, but very happy all the same.

Isabella pushed herself upright and laid down at his side. They laid together, resting, for a few minutes in silence, until Isabella spoke. "Instead of saying, 'climax', you should say you are cumming, instead. Climax sounds kind of weird in the moment."

"Does coming mean the same thing as orgasming?" he asked.

"Yeah. You didn't know that?" she said.

"I'm told I'm naive." He said.

"It's alright," she said, slipping her arm up his shirt to rest it on his chest. "That's what I like about you. I know you are an innocent guy, which means I can trust you as my boyfriend."

He smiled. "Good."

They snuggled for another minute before Isabella raised her eyes to look up at him. "Unfortunately, I wish I could stay here all day, but I have to get ready for a troop meeting here soon."

"That's okay," he said. "We probably don't want to lay naked here for too long anyway, since you never know in this house when someone is about to barge in without knocking."

With a heavy sigh, Isabella straddled him up, giving him a kiss and one last look at her breasts as she sat up on him. "I've also been thinking about that thing you promised me, that you would do anything I asked."

He raised an eyebrow. "And?"

"Here's what I order you to do. You are going to let me come over and do this again every day."

Phineas smiled. "I'll do it," he said.

"That's not all," she said. "We aren't going to be doing any more of this, 'coming in five minutes or less' stuff like we did today. We are going to need to build your stamina, because when your arms heal, you are going to have a lot of interest to pay back, starting with screwing me for two hours straight every day."

His eyes got bigger, like a kid in a candy store. "Okay! Sounds like a fair deal to me!"

With a nod and one last kiss, Isabella got up to dress herself and leave. She walked home, said hi to her mom, and locked herself in her room to take them back off again and dive into bed, spreading her legs. After all, she had to build up her stamina, too.