Sousou no Frieren - General Aphrodisiac Magic Otsuyu Dark (Doujinshi)

Stark x Fern vanilla with extra steps. A virgin boy and a virgin girl falling under the effect of aphrodisiac magic. In order to save their companions being held for debt, Fern and Stark head out on a quest to subdue a monster. But despite Frieren's warning, both of them fall under the effects of aphrodisiac magic. Will they succeed in defeating the monster? This is a doujin manga about virgins having sex for the first time, with a bit of tentacles involved. (Source: DLsite)