He fucks her ass.

"So... Are we done, or did you want to do more?" Anko asked, looking up at him.

Naruto grinned and walked around behind her. "Tell me, you ever peg a guy?" he asked, rubbing her ass with one hand as he dug for the Note with the other.

"Uh, yeah, I have, why?"

"Ever taken it up there?" he asked, making a clone, giving him the Note to make the same adjustments to Anko's ass he had given Sakura.

"No... I never let a guy do me up there, I would kill a guy if he ever tried..." Anko said, looking back at him with a mixture of nervousness and excitement. She knew where this was going. "...but I can't help but want to let you..."

"Exactly what I want to hear," Naruto said, once again grabbing her legs and pulling her waist up, this time from behind, and his slick erection pressed against her back door, which resisted at first, but gradually gave him entrance.

"OhfuckohfuckOHFUCK I CAN'T BELIEVE I'M LETTING YOU DO THIS!!"Anko screamed out in pleasure.

"Do you want me to stop?" Naruto asked, halfway in.

"No, keep going!" Anko begged, both feeling too good, and wanting to please him.

He nodded, and with a hard push, fully inserted himself, much to Anko's delight. "Unh, I feel so full back there!" she moaned as Naruto began to slowly fuck her tight hole. Her bound hands clenched into tight fists as he gradually sped up.

"Oh... I would say I should have taken it up the ass ages ago, but somehow, I don't think it would have felt so good..." Anko moaned, her tongue lolling out, before she gasped and cried in ecstasy as Naruto suddenly went full speed, pounding into her ass and giving her a spank every few thrusts, her boobs bouncing with every thrust.

She grit her teeth, overwhelmed with desire, before she gave a final cry along with Naruto, and his seed filled her ass up. He wheezed a bit, but was quite thankful for the stamina the Fox gave him, unaware his Uzumaki genetics played a role in it to. Anko seemed on the verge of passing out, and he pulled out of her, giving her ass a final slap.