An 18-year-old Tails was taking a stroll down Green Hill when he came across a hidden door behind one of the zone's loops. Wondering what was behind the door and making sure it's not an Eggman trap, Tails headed inside. After a while of going down a dark hall, Tails could not see or hear a thing and declared, "Oh well, I guess nothing interesting is inside at all. Maybe I should go."
However, as he was about to head back, he then got knocked out, someone hit the back of his head and he fell down.
When he regained consciousness, he found himself unable to see anything but darkness, indicating that he was blindfolded and his hands were tied behind his back, so he could not remove the blindfold. Tails also noted that he was sitting on a couch, and he was soon greeted to a familiar female voice, "Hello, Tails."
After his greeter took off the blindfold, Tails could see again and much to his shock, he saw not only Rouge the Bat, but also many of his female friends and even a few enemies, all older than 18. Amy Rose, Cream the Rabbit, Vanilla, Sally, Fiona, Bunnie, Blaze the Cat, Lien-Da, Shade, Mina, Honey and Nichole were all there and all of them were completely nude. Tails asked, "What's going on?"
Rouge explained, "You see, Tails, you have stumbled across our secret hideout where we can be nudists."
Amy said, "Yes, nudists. It feels liberating."
Blaze added, "Being naked is sort frowned upon in public areas."
Cream chimed in, "Which is why we keep it to ourselves. No one can get angry at us for being naked in a private place like this."
Rouge untied Tails and took him on a tour of their hideout, showing him their bedrooms, the living room they were in, the kitchen, the gym, a beach hidden from public eye and a storage room for their clothes when they go out. After the tour, Rouge then asks Tails a big question, "Would you like to be a part of the club?"
Shocked, he asked, "Why would you ask me to join?"
"Well, we wanted to invite some boys over. However, many of the ones we know would most likely take advantage of us when our guard is down, but with you, Tails, we know you wouldn't do such a thing to us."
Vanilla explained, "Because you're sweet and kind. Sonic, Shadow, Knuckles, Espio and Vector can't be trusted as much as you can."
With some encouragement from the girls, Tails accepted the offer while also pointing out, "By the way, I'm already naked. I only wear socks and shoes... and gloves."
Rouge giggled, "Just take them off, silly. You certainly don't need to worry about your little friend. He seems to like fresh air."
She referred to his penis, which was hard, but below average size. After taking the clothes he was wearing into the storage room, Rouge showed him his bedroom where he was able to get some rest for tomorrow, wondering what else will be in store for him.