Don't own, don't sue, no money
Ah, as with most anime and manga series with twins, Eyeshield 21 also has some twincest, because you can't tell me that Unsei's obsession with making Agon #1 is healthy.
Unsei didn't know when he had started lusting after his younger twin brother, but now that he had the problem, he couldn't get rid of it. Once he had given up trying to be as good as Agon at anything and started working on making himself the best he could so he could help Agon and not hinder him, he supposed that was when the jealousy he had once held for his younger brother had started to change.
Agon had noticed that something was up with his Unko-chan a few months ago. And yes, he had said his Unko-chan, because hell be damned, he wasn't going to share his older twin brother with anyone, and he'd fucking kill anyone who bad mouthed Unsei, even if it was their own father. The old bastard didn't measure up to Unko-chan in the slightest. But every time they where alone and he asked Unko-chan, he'd just brush it of and either face away from Agon and go to sleep, since they still shared a room, or walk off.
Unsei hurries into the shower after having a wet dream about Agon, he was ashamed that the proof was rather easy to see in his pajama pants. "Unko-chan!" Agon whines walking right into their bathroom with that being his only warning to poor Unsei, who panics slightly in the shower, thankful for the curtain seperating them. "What ever you do don't flush." Unsei says. "Yeah, yeah, you dreaming about your dream girl or something?" Agon asks, wondering what Unsei would do if he stripped down and joined his twin. He likes the idea and strips.
"What are you talking about?" Unsei says and the makes an odd squeaking noise as Agon joins him in the shower. "What are you doing?" He asks, refusing to look at Agon. "I wanted to take a shower." Agon says, trying to manuever so he would be in front of Unsei and force his twin to look at him. "You couldn't have waited until I was done?" Unsei asks. "Che, what's the point, and the water's to cold." Agon says, bending over and Unsei nearly has a nose bleed.
Once the water was it his liking, Agon turns around and catches Unsei looking at him. He looks over his twin and frowns. "What?" Unsei asks, looking down. "When did you get buffer then me?" Agon asks, noticing the larger muscles and runs his hands over them slightly, Unko-chan even had an 8 pack! Agon looks at his own 6 pack. (You can't tell me that Agon and Unsei are at the same level of buffness, Unsei just works a lot harder, and since they're identical twins, of course he'd get more muscles.) "If you came to practice more often you'd be the same." Unsei says, deciding that the best way to calm himself down would be to lecture Agon, he didn't like that his brother never came to practice unless it was to show some slut the waterfall.
"Che, well now I am, I can't let you remain buffer then me, I bet you're stonger then me to." Agon complains, and Unsei shakes his head. "So, why are you sporting a boner? Who's the chick?" Agon asks and Unsei just shakes his head. "That's none of your business." Unsei says as he starts to wash himself down. Agon scowls. "Of course it's my business." He says, following Unsei's example. "No it's not, I don't ask you about the sluts you sleep with." Unsei says and Agon frowns, just because Unko-chan didn't ask, didn't mean he didn't tell him their names and discribe them for him. Agon shoves Unsei slightly. "So, I still tell you about them, tell me." Agon says and Unsei stil refuses. Agon shoves Unsei and tries to pin him but as he had though, Unsei was stronger and pushed Agon back, freeing himself.
Unsei stiffens when Agon pins him since they where making a lot of contact, but he's surprised when he can push Agon back. "Knock it off." Unsei says warningly to Agon and then tries to rinse off hurriedly so he could get out of the shower. Agon looks at his brother. "No, when the hell did we start keeping secrets?" Agon asks, and it was true, they had never kept secrets from each other. Agon also shoves Unsei, nearly causing him to slip.
Unsei snaps and whirls on Agon, pinning him against the wall and gets one glimpse of the surprised look on Agon's face before smashing their lips together and pressing their bodies together. Agon couldn't believe his Unko-chan was doing this, was it to scare him and make Agon leave him alone. Agon turns his head away. "Wha-what was that for?" He asks. "It's you, you idiot, you're the one I'm sporting a boner over." Unsei tells him and then realizes what he just did and rushes out of the shower, onlying grabbing a towel to cover himself with before hurrying out of the bathroom and hurrying into their room, grabbing some clothes, and then going into the guest bed room across the hall.
Agon was slightly shocked, but mostly pleased. He'd wanted to be with his Unko-chan, but he had thought his brother too straight laced and was afraid he'd be disgusted with Agon. Agon hurriedly rinses, towel dries, and gets dressed. He doesn't go to their room, but goes to the guest bed room, when ever Unsei wanted to be alone he went there. Agon opens the door and sees Unsei at the desk, the thinking look was on his face.
Unsei hears Agon comes in and just waits for his twin to hit him. Agon wouldn't just give him a look of discuss, he'd beat the crap out of him, and Unsei would let him. Agon spins the chair Unsei's in so that their facing. "You should really give a guy more time to react." Agon says before kissing his Unko-chan. Unsei was surprised, but quickly starts kissing back and pulls Agon into his lap.
And that's it, this has to be the limiest thing I've written so far, review and if you have any pairing you want, just ask.