My sister developed a fever after drinking an aphrodisiac. (SDAM-044)

SOD gives a big boost to a sister who likes her brother! They arrange for the brother and sister to go on a date, have dinner at each other's place, and secretly drug each other! The brother takes care of his sister who has a fever, and when he sees that his sister's body is aroused, his penis becomes erect, and they end up having incest!