"Is this really a form of magic...?" Humiliating rear-entry position, seeding, squeezing, and massage - Ichino Aoi JUR-439

One day, at my husband's suggestion, we went to a nearby double massage parlor. He's a devoted husband who still puts me first even after marriage. I was determined never to betray him… but… Upon entering the parlor, the female staff member was assigned to the husband, while I was taken care of by the male staff member, Mr. Yamamoto. The massage went smoothly, and I didn't feel uneasy. However, when I lay on my back, Mr. Yamamoto's true nature was revealed. The female staff member also helped, and on the bed next to my husband, they began performing a massage in a 'rear-end position'—a position I'd never even shown to him before…