I’m looking for a doujin about a knight girl, the title was something about a potion.

I’m trying to find this doujin about a knight girl, the doujin was called something along the lines of “Lust Potion” or “Potion Of lust” I can only remember it had either the words lust or potion in it. One of the pages was of a gangbang with other knights. Along with orcs aswell. I can only remember those details, any help will be much appreciated.