The era has changed from Heisei to ○○, and the country's declining birthrate is progressing more and more, and sperm is precious. And I've come to incorporate a class that squeezes the precious sperm to the last drop in the back of the ball. Female students who improve the technique of sucking sucking sucking sperm from the urethra by denting the cheeks and tightening the rod. Serious vacuum fellatio makes beautiful girls look hyottoko. This is the story of schoolgirls who put their passion into vacuum blow job.
