An outrageously perverted boyfriend and his loose-hole girlfriend! On the beach, Erina and Shinobu mock and insult each other while being stimulated— their pussies stirred and prodded, even having something inserted into the hole behind— as the two couples indulge themselves freely under the blue sky. Before long, their consciousness grows hazy as they reach the height of bliss. And amid all of that, a single question is spoken: “Why don’t we get married?”