"Idiot! We're siblings." "My brother-in-law. Legally speaking." Thanks to my stepfather's remarriage, I gained two half-sister beauties. The older one, Rika, is in my grade. The younger one, Karen, is a year below me. Living with only girls for so long has made being naked in the room normal. My aroused crotch piques their interest. Suppressing teenage hormones can only last three days. At school, at home, we who know the joy of sex just keep having it.
