All characters belong to Hiro Mashima.

Natsu and I had played the same game, once a week, for the past two years. I had won every week for the past two years too, because this game was not one that Natsu had been acquainted with, and he would never be able to practice it without getting embarrassed, either.

Our game? Well, it started when I was sixteen years old, and Natsu had come to my house with his tail between his legs. Happy had been left behind, probably asleep or gorging himself on fish somewhere, while Natsu made inquires in regards to a certain bodily function. "Gray," he began, pink dusting his cheeks.
"What?"
"I-I need your help..." I sighed, an annoyed look on my face, and asked what he needed help with. Without a word of warning, he unbuckled his trousers and dropped them and his underwear to the ground. His organ stood at attention, and his face went from pink to lobster red. "It won't go down!" He yelled, fat tears welling in his eyes and threatening to fall.
"Oi, oi, Natsu, it's okay," I said in an attempt to calm him, but he started crying. The salty drops ran down his face, mouth screwing up and hands balling into fists.

Hesitantly, I approached him, placing a hand on his shoulder which shook from the crying. "Oi, what have you tried?" I asked. His watery eyes met mine.
"I... I don't know what to do... Igneel... He... He never-"
"I get it. In that case, it's an easy fix."
"R-really?" His teary eyes brightened, his mouth threatening a smile. I nodded.
"Just do as I tell you," I replied, and sighed at him. "You are stupid sometimes."

He sniffled, wanting to protest, but not feeling as if he were in any position to do so. And here was where I experienced the most embarrassing scenario in my whole life - trying to explain to an innocent how to jerk off.

I made him sit across the room from me, in hopes that I wouldn't see too much, and described the sort of motions, grip strength, that sort of thing, but every time, he got it wrong somehow, and yanked too hard, or gripped too hard, or not hard enough. After twenty minutes, I sighed again and got up, walking over to him and seating myself next to him, and directly across from the full-length mirror I had. "I'll show you once. It's up to you to remember how it feels, and replicate it, got it?" He nodded meekly, slanty eyes pleading, as I lifted him across and onto my lap.

I used my legs to prop his up and out of the way, spreading them sufficiently to get access to the boy's member. It had been weird back then, but now, it just came naturally. "Okay, I'm going to start in a sec," I told him, and he nodded with a flushed face.

I took the muscle in my hand, pretending that it was my own, but knowing in my mind that it wasn't, and started to stroke. I applied the pressure I liked, and built the speed I was accustomed to over only a few seconds, which proved to much for his depraved flesh. By the time I had gotten to what I liked, he was done, translucent fluids spraying up, onto his stomach. He panted, the expanding and compressing of his chest enough to rock him back and forth. "That was... Quick..." I muttered.
"Shaddap!" He yelled, covering his face with the scaly scarf.
"Hey, it's... It's okay. You can... uh... improve on that..." I muttered. The sight of his embarrassed face in the mirror and the feeling of his skin in my hands making my own muscle react. "Uh... Natsu?"
"What?" He snapped, teary eyed again.
"Sorry... Um... I was going to get you to practice on yourself... but..."

He turned his head to look at me, narrowing his eyes. "I'll just have to practice on you instead then!"
"Wha-" He shifted his weight, toppling us both over, before crawling away from me and sitting on his haunches.
"You said you'd help, and you have... but as it is, if it happens again, then I won't be able to fix it! So, Gray... Because you didn't teach me, I'll have to teach myself..."

Even my side-ways view of his face told me that he wasn't sure of himself. I smirked. "Fine, Natsu. You can teach yourself, using me, but let's make a little competition out of this," I sneered with a competitive lilt to my voice, as I righted myself and sat, legs spread, against the wall. "If you can make me cum faster than I did for you, you win, if not, I win."
"Win what?" Natsu asked, seeming to have taken the bait. This was the only way I could make it less weird for myself.
"The competition," I replied simply, and he cut his gaze away from me, then nodded.
"O-okay..."

He crawled back to me, unsure of where to place himself. "I... I don't know where-"
"Just sit on my lap, flame-brain." He nodded. It was weird seeing him so embarrassed, but I knew why he was. He didn't like not knowing something.

He did as I had said, one leg either side of my hips, and fumbled with my belt. With some difficulty, he had it open, and was popping the button, then undoing the zip. His hands were shaking the whole time. "Oi, calm down..." I said, just as his burning fingers brushed my erect penis. Had I not been leaning against the wall, he would have floored me just from that. The temperature difference felt so good... But I didn't let him see my reaction. "You ready?" I asked, and he nodded.

His fingers curled around me, too loose at first, giving no friction and little pleasure. Only the heat affected me. "Grip tighter, Natsu," I implored, and again he nodded, the fingers contracting around my girth. A little too much. "Not that tight," I cursed, and he let up slightly. I had counted the seconds, and I knew already that I had won. I wasn't about to say anything though... This felt too good.

He continued stroking my dick from base to tip, staying at the same, monotonous and cautious pace, until I snapped at him to go faster. It seemed he had learnt something from me, though, as he increased the speed slowly, slowly until- "Gah!" My own fluids spurted, landing in a similar pattern to his minutes before.

I looked at him through half closed eyes, knowing now that it hadn't just been my technique that finished him off so fast. Temperature was an important factor in this whole thing. I couldn't do that for myself. Until I found a woman who could do that, I had to keep him.

"I won," I announced, putting on a air of superiority to hide the fact that my arms had weakened from the orgasm.
"How do you know?" He shot back, the same anger he normally had coming back. He was in his comfort zone again, doing something he was accustomed to - arguing.
"Oh, come on Natsu, I lasted at least ten times as long as you did."
"Nu uh!"
"Uh huh."

From this, we came to the conclusion that it would have to be done again, the following week, with a timer... And it only escalated from there.

Thanks for reading! There will probably be one or two more chapters, depending.