That's Vol. 24 which I reviewed here a year ago. Some of the episodes have the whores interact with the public in some way. This one has some guy actually come over and ask if he can join in (which is a pretty legitimate question seeing as these whores are doing this stuff in public), but the director just advises the girls to run away.
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I hit her with the hammer on top of the head. She made a lot of noise and kept on making noise, so I hit her again.