Widow's Boarding House: First Sex (未亡人下宿 初のり Mibōjin geshuku: Hatsunori) is a Pink film directed by Shin'ya Yamamoto and starring Yukiko Tachibana. It was filmed for Taiheiyō Eiga (太平洋映画社) and released by Nikkatsu in conjunction with their Roman Porno series.