You're on vacation with your girlfriend, Sasha and you've made a friend Anna. The three of you decide to take part in the resort's "Kink experience" on your last night. While the girls get ready, you find a letter explaining that the experience will be a mixture of 2 kinks - a threesome, and a secret you'll find out soon. You've been given a beverage which you consume while you wait, only to find out it was a shrinking potion! When the girls come in, they're surprised to find you absent, but read your letter and get excited by the prospect. They open their own letter, which states the second kink will be giantess-themed. Sasha and you had both stated your interest in the fetish during the application interview, and Anna had been open to trying anything. Sasha explains the fetish to Anna, and they both set about to try and find you. The letter mentioned that the giantesses can do no harm to their tiny partner, and encourages them to get creative with toys. When Sasha and Anna find you, they proceed to take the letter to heart, toying with you with all parts of their bodies...