The weather that night seemed a little peculiar in comparison to the usual weather in the area. Not only was is warm, but it was pouring with heavy rain. A stormy scent hung in the humid air, and a powerful wind rustled the grass and the trees, creating a natural symphony along with the sound of the raindrops. Genos had just finished cleaning up the kitchen from their meal the night before, setting everything back in place so it was neat and tidy. He scanned the fridge underneath the bar and found a tray of Saitama's favourite beers. The coolness of the refrigerated bottles was refreshing against his hands as he grabbed a couple and made his way into the front room.

Saitama lay on the couch in nothing but his damp swimming shorts, his face was flushed and he looked uncomfortable. "I brought you a drink," Genos handed him a cool bottle, the older man shuddered at the feeling of the cold class against his skin.

"Oh man that feels great," he sighed, "it's way too hot tonight." He took a sip from the bottle, then rolled it against his bare chest, enjoying the cool sensation.

"You are too hot, Saitama?" his disciple cocked his head to the side and stared at him intently.

"Yeah, it's roasting! Aren't you?"

"Not at all," Genos told him with a monotone voice. "You see, I can regulate my temperature to suit my surroundings. I have grown so used to it, that I do it now without having to think about it at all." Genos lifted his metal hand and placed it on his master's cheek. Saitama's eyes widened in shock as the temperature of the metal decreased slowly and Genos became cold to the touch.

"Woah," he glared at his disciple in awe, "that's pretty cool." Genos let a burst of steam puff out from his shoulder plates. This time it was a cool mist that coated the older man with a refreshing temperature.

"If... if you would like then you could use my body to cool yourself," Genos murmured the words awkwardly, but before he knew it Saitama had nuzzled into his cold arm.

"It's like having a hot water bottle, but cold, y'know" Saitama grinned, feeling his body temperature adjusting to a much more comfortable level. "Could you lay down or something?"

"Yes," Genos set himself down, his body stretched across the sofa. Saitama lay beside him, letting himself be cooled by his disciple's metallic frame. The two turned to face each other, their eyes locked into another magnetic gaze.

"I hope you don't mind," Saitama mumbled, blushing.

"Not at all," Genos replied. He noticed that their faces were only inches apart. Saitama could feel the cyborg's cool breath on his neck and he shuddered in anticipation. "Can I...?" Genos began.

"Don't ask..." Without hesitation the two pairs of lips met in a passionate, deep kiss. The feeling was no longer unfamiliar, and they resumed their usual position of tightly wrapped arms and wandering hands. The feeling of Genos's cool skin against the sensei's warmth was blissful. Eager to please, the younger man pulled himself on top of his master, deepening the kiss. Every contour of their bodies were pressed up against each other, and Genos let off more refreshing steam. The more time went on, the hungrier he seemed to get. It was as if the cyborg wanted to taste more and more of his master with each passing second. Saitama's legs began to shake, and he could feel his shorts tightening again.

"Well anyway!" he shot up, pushing a confused Genos off him. "Maybe we should cool down in the rain instead!" He tried to hide his 'excitement' from his disciple as he made his way outside into the pouring rain without hesitation. Genos followed, in a state of bewilderment. The rain clinked off the cyborg's metal shoulders and soaked his blonde hair as he came to join his master who sat on the wet grass in the corner of the front garden. "Did I do something wrong, master Saitama?" he asked.

"No! No not at all why do you ask?" Saitama chirped, trying his best to act normal, but failing miserably.

"You are acting weird," Genos told him, "I am sorry if I was showing my affection too strongly, I will not do it again if you do not like it." Saitama blushed, rolling his eyes and rubbing the back of his neck awkwardly.

"I do like it, a lot" he admitted timidly, "I guess that's the problem."

"That is a problem? I do not understand."

"I think I..." Saitama sighed in defeat, deciding to admit his true issue in order to not hurt his disciple's feelings. "I like it a little too much, if you get what I mean, heh."

It took Genos a few moments to process what his master meant, but he got there in the end. "Oh, I think I understand." He told Saitama, moving closer to him so he could whisper in his ear. "But that does not have to be a problem." Genos's hand gently grasped the area between his master's legs.

"G-Genos, you..." He was quickly interrupted with another kiss. The cool, metal hand warmed slightly as he worked up and down the hardened area in Saitama's shorts. The two of them fell back into the same position that they were in on the sofa. Genos resumed his deep kissing, letting his tongue dominate his master's. He pinned Saitama's arm above his head and with one swift movement he ripped the shorts off the older mans body, leaving them in tatters beside them on the grass. The rain pounded against the cyborg's frame as he grasped Saitama's length in his hand, earning him a breathy moan from his master. "It feels good right here, right?" He breathed between kisses, Saitama responded with a sharp, pleasured gasp. Genos grinned smugly, "good," he said in a low voice. More steam poured from his ridges as he worked up and down Saitama's shaft. The older man's fingers dug into the spaces in his metal back, he panted and moaned between each kiss.

"F-fuck..." Saitama's words were dripping with lust and desperation, he bucked his hips up in time with his disciple's skilled movements. "Nnngh... mmm.." Genos moved his lips down to Saitama's neck, nipping and sucking at the soft skin with his teeth.

"I can feel you getting close," Genos purred into Saitama's ear,

"Ahhh,"

"I can hear it too, don't hold back, let me hear you" the words were smooth like honey, and his hand movements quickened, focusing in the most sensitive area. The older man's body tensed up as he could feel a euphoric sensation spread through him. His legs trembled, and he could feel Genos's wet tongue on his neck as he neared his climax. The two locked their lips together and Saitama moaned loudly into his disciples mouth as he climaxed over Genos's hand with a loud moan.

The two panted and returned to a seated position as Saitama came down from the high of his climax. "That was... yeah... wow." Saitama waited until his head had stopped spinning before he truly acknowledged what had just happened. "That was great," he smirked, Genos let off a small puff of steam. His yellow eyes glinted at his master, the two smiled sweetly at each other. "Umm..." Saitama began, "do you feel like giving the hot tub another whirl? I think it's stopped raining." Genos nodded looking up at the clouded night sky. Neither of them had noticed that it had stopped until that moment.

Saitama made his way inside to fetch himself another pair of shorts and Genos lowered himself into the warm steam of the hot tub. He cooled his body temperature, spreading the coolness through the water so it wouldn't be too warm for his master. The older man strolled back out and launched himself into the hot tub, creating a huge splash. Genos rolled his eyes at Saitama and the two leaned back against the walls of the tub, enjoying the bubbles.

It had been around an hour since the two had first entered the hot tub, and after the two had finished their heated debate about whether a dog or a cat would make a better house pet, they were fresh out of conversational topics. Saitama could barely keep the memories of what Genos had done to him out of his mind. 'Why was he so willing to do that to me?' he thought to himself, 'it was amazing, but a guy like me shouldn't have the kinda luck to get off with a guy like him.' He tried to shake the images from his head and focus on a new conversation, but his mind kept drifting to the memories of his disciple's breath on his neck, his metal frame on top of him.

"Hey, Genos" his voice broke the silence, "about before..."

"Is there a problem?" Genos sounded concerned again, and Saitama grinned as he noticed the pattern of Genos's anxiety.

"Not for me, no" Saitama shuffled slightly closer to the cyborg. "Can I ask you something though?"

"Anything," Genos replied in his usual slightly overly-dramatic tone.

"Well can you... I mean I really enjoyed it and I was wondering if you would too... well y'know if you could... y'know..."

"Yes, I can actually," Genos interrupted Saitama's embarrassed rambling. "But it is kind of different from what you would expect."

"What do you mean?" the older man asked, his curiosity piqued. Genos let out some steam.

"Well, the places that feel good for me are different than for you," he admitted sheepishly. Saitama let his eyes run down Genos's metal body, thinking of all of the places that could potentially be his sweet spot. "I suppose it is a little weird."

"Could you show me?" Saitama asked, a faint blush appearing on his cheeks. The cyborg looked a little apprehensive, but he nodded. The sensei let his eyes follow Genos's fingers as they traced down the contours of his chest, reaching a small button and pressing down on it gently. With a rhythmic whir, his chest plates opened up to reveal his core, and a plethora of different complex looking bits of circuitry and clumps of wires.

"In certain places... well, this is one place" Genos let his words trail off into nothing as warm steam squirted through his ridges in embarrassment. Saitama moved closer to his disciple, leaning down to inspect the area with his eyes.

"That sure does look complicated," the older man glanced around, wondering if he could even figure out how it all worked. "May I?..." Genos stifled a gasp, but nodded his head anxiously.

Saitama weaved his fingers gently into the space inside Genos's chest. He ignored the bouts of steam that surrounded him, and ran his fingers across some circuitry, but it didn't seem to earn a response from the blonde. Slowly, he intwined his fingers with a group of black, thin wires' he felt his disciple's body jolt slightly, and he knew that he was getting closer to finding the right place. He rubbed his thumb against a larger wire a little further back. "Gah!" the cyborg gasped, clenching his hands into tight fists.

"Found it," Saitama smirked cockily. He moved himself onto the younger man's lap, his legs at either side. He began to play with the wire in-between his fingers, and his disciple let out a loud, pleasured groan. The sensei's lips met his pupil's and they entered a deep, desperate kiss. Saitama pulled back from the kiss every time that he caressed the wire so he could hear Genos's long, passionate moans. He sounded hotter than a July afternoon. The older man pulled his fingers back for a moment and Genos whimpered in protest, "n-no, p-please" he begged, catching Saitama's lip between his teeth and pulling him back down so his fingers once again touched the wire. "Don't stop," his frame jolted and writhed beneath his master, and Saitama had to bite his lip hard to prevent excited sounds from escaping him. His shorts were tight again as he listened to the blonde's begging whimpers. He was now moving his chest upwards, pushing Saitama's fingers deeper within him. Without warning, Genos ripped off Saitama's shorts again. 'That's two pairs gone now...' he thought, but his brain was interrupted by Genos tugging at his length once more, this time more messy and desperate.

The two moaned into each other's kisses, rocking into each other, letting the euphoria build slowly and slowly, until it was almost ready to erupt. "Ahhh!" Genos cried, he broke the kiss, leaving a trail of saliva still connecting his mouth to his masters. The cyborg's body lit up as he threw his head back in pleasure, chorusing 'yes, master, yes' and letting every filthy obscenity he could think of leave his body as his orgasm overwhelmed him. That sight alone tipped Saitama over the edge, as he finished into Genos's trembling hand with a low groan. The two panted furiously as the older man's heart rate slowed and the younger's core whirred a little quieter.

"I didn't think that you would react that well!" Saitama admitted, meeting Genos's dazed eyes.

"Neither did I," he murmured, still seeming to be in a state of amazement.

"You're kinda dirty aren't you?" Saitama grinned devilishly, still in a mental state of arousal. He had never expected that Genos could achieve orgasm at all, none the less react like a freakin' porn star just by having his wires touched.

"Umm.. I..." Genos stumbled over his words as he tried to fight off his embarrassment.

"It's ok, Saitama smiled, "I like it, and if that's just one of the places that feels good, then I kinda can't wait to find the rest." Genos puffed out steam and the two leant back into the rippling water of the hot tub, trying to ignore the fact that Saitama had climaxed into it. The rest of the night was calm and relaxing, filled with conversation. The two slept well that night, feeling satisfied with their holiday so far.