Emiri Momota and her boyfriend are about to go on a weekend getaway, but when they arrive at their destination, Emiri isn‘t pleased. She locks herself in her room and starts exploring it. She finds a mysterious book containing spells. One of the spells, called ‘Justice for an unfaithful lover’ raises her interest and she casts it. Right away, a strange sensation rushes through her body and seconds later, she grows a futanari dick! Eager to put it to use, she goes to her boyfriend and starts kissing her. He is surprised to see that Emiri now has a huge cock, but he can’t help but become aroused! So he flips Emiri and starts fucking her from behind. She is being extremely horny so she wants more and rides her boyfriend like never before. They fuck passionately until both of them cum.