What episode does Anna and yoh sleep together?

Volume 9 but not sure exactly which chapter sorry.

Hope that helps ^_^

Ivy here ;D

Just improving this answer, well i was reading the manga and i saw lots of people discussing about it, so... i decided to look it up, hai \o/´

Eto... ^-^'

Chapter 77, page 21 of the nineth manga.

Enjoy it \(u.u)_~