Sara, who had secretly been concerned about her thick pubic hair, had been using her younger brother Yoku's tongue for cunnilingus to relieve her mounting sexual frustration. However, Yoku was also of age and had been asking to insert his penis into his sister's vagina, but Sara had managed to talk him out of it, saying that since they were siblings, that was a no-go. But Yoku really wanted to have sex, so he kept secretly spiking his sister's food with an aphrodisiac he found online... One day, Sara's body became more sensitive than usual, and she finally took the initiative to seek out her younger brother's penis. A story of first-time incestuous sex reversed by an aphrodisiac!
