[Jairou] Shinjin Kyoushi Fujiwara-san no Ayashii Kyouin Nikki ~Nijigenme, Nani ka Okashii Shintai Sokutei~ (COMIC MILF 2021-10 Vol. 62) [MrBubbles]

Newcomer teacher Yajima Yuki, fresh out of her public health doctorate, arrives at a rural school expecting a normal appointment—until her principal reveals the job has a very unorthodox requirement. Her older, well-endowed colleague warns her with a knowing wink that the former doctor "tired due to old age" couldn't handle the unusual duty, leaving young Yuki to take her place. A single page of surprised setup quickly erupts into a wild gymnasium of debauchery, where the spectacled rookie and her curvy coworker are buried under a crowd of eager, well-hung students, climaxing together before their classmates circle back for the next "measurement." Left dazed and thoroughly used on the gym floor, Yuki only has a breathless moment to catch her breath before the final bell rings and a fresh, randy class files in.