男勝りな大学寮母は工業大生たちの実技試験の練習台として毎日乳首いじりされチクイキしている。開発され続け大きく成長したデカ乳頭。 青空ひかり

剧情：

Hikari, a dorm mother at a certain technical university, is a tomboyish person and supports students with a strict yet affection. Since industrial university students are required to be skilled with their hands, Hikari has been using her nipples as a practice tool for generations as part of her practical preparation... A perverted dorm mother who can't satisfy her husband is forced to release her sexual desire while being teased with her big nipples that have grown up!