Kudos to "Unhinged" by Thorne Scratch on ff.net (which is FFVII and seems completely unrelated, I guess, but isn't).
Complete PWP (the first I've written, ever. first NC-17, too)
Title: “Not an Answer”
Fandom: Bleach
Characters: Kyouraku/Isshin
Rating: NC-17
Word Count: 177
Disclaimer: Bleach not mine.
Sex between Shunsui and Isshin was a wild affair, more like a wrestling match than something intimate, if one disregarded the heated kisses and knowing touches.
Isshin, sang John Lee Hooker songs loudly and Shunsui laughed and smelled the good sake as they diversed each other of their clothes.
They rolled on the floor, skin on skin, in the Second Eternal Struggle-Who’s on Top?
Shunsui finally pinned Isshin and ran his tongue down his chest. Isshin laughed and nipped at Shunsui’s neck in return.
Shunsui rolled his tongue over a nipple, as Isshin dropped a hand between the other captain’s legs. Shunsui spread Isshin’s legs and captured his sake-tasting mouth in a kiss as he entered him.
“Damn, Shunsui,” Isshin laughed in that boisterous voice of his. He pushed back with his hips, though, taking even more of the other man inside him.
Shunsui groaned at the heat of his friend and set about pillaging his mouth as he filled his body.
“You’re going to leave, like Kisuke did, aren’t you?”
Isshin kissed him in response.