A prank at a hot spring: Naked and unsuspecting female guests are locked up in a rented bathhouse at a hotel and subjected to the wanton pleasure of being surrounded by erect penises! SW-306

They booked a secret hot spring inn that was very popular with women, and whenever a group of women came, they would switch the signs for the women's and men's baths! The women, thinking it was the women's bath, would rush in wrapped in a towel without hesitation, only to find a group of middle-aged men surrounding them with their penises, leaving them nowhere to escape! The men's hands reached out one after another, and they were powerless to resist. Faced with the erect penises in front of them, they were completely played with, caressed, and finally penetrated until they burst.