The shock when the house cleaning sister introduced by the landlord arrived in the room is still unforgettable. She was fully equipped with a deep hat, mask, and work clothes, initially all business with no smiles, seeming like just a routine cleaning. But once cleaning started, glimpses of a braless tank top and panties under the work clothes emerged. The hidden slender waist and large breasts became visible, making me uncontrollably aroused and start masturbating. Then she noticed and offered an extra service to help with ejaculation. Having sex while wearing a mask was refreshing, and the gap between that business-like atmosphere and passionate acts was irresistible. I'd love to see scenes with different types of masks, like medical or dust masks—adding variety would double the excitement. This title makes life feel fun, and I was drawn in by the unexpected developments during the cleaning.