[Kurumileaf]

Seeking a name of a doujin that was on e-hentai sometime ago but can't find it now where two male adventurers venture out into the woods to deal with a evil they learned of they come across a woman with a vine attached to her right above her ass. One Cuts it off and falls limp the other is soon restrained by the vine like tendrils but the one who cut the one before has one that makes contact and changes him into a female to which rapes the other. After which the doujin leaves off as the one who was tied up before changed as well looking for one to have sex with as well. Please let me know if you need more details about it.