FTHT-338 If your panties get stained, you're out! Women participating as monitors for a certain underwear manufacturer will get paid if they can withstand a relentless attack while in an M-shaped position!!! How many will be able to endure it!? [Streaming Exclusive Vol. 1]

Women applied to be product testers for a certain underwear manufacturer, simply to wear their new product. The test was very simple: wear the new product, which was supposed to be completely stain-proof, and prove its effectiveness. However, the underwear, which was boasted to be completely waterproof, did get stained... The men from the manufacturer, angered by this negative publicity, offer to pay the women their compensation in exchange for ejaculating into their uteruses. Will any of the women be able to successfully receive their compensation? [Streaming Exclusive Vol. 1]