A jog in the park

          Toby and his twin sister Amy had just return home from a jog in the park, where they found a couple of matching rings. Putting them on, something incredible happen. They switched bodies! Quickly they realised that the rings were responsible, so they tried taking them off and putting them on again. Luckily they had swapped back. Feeling very relieved Amy said:
          "This rings are fucking powerful!" Then, with a wicked smile she added: "You know, I was wondered what it would be like to be a boy. Run fast, be tall and strong. What do you say we swap again and go back home like that?"
          Toby was a little confused, but couldn't help to agree with his sister, that he was a little curious.
          "Sure. Now that we know that we can switch back, it would be kind of fun to be you for a while." Putting the rings back on Amy said from her brother's body:
          "Let's race back home!" and started running. Toby tried to catch up but his sister's body couldn't compete with his old body. When he got home, Amy was already locked in his bedroom, so he decided to go to hers. Looking in the mirror he saw Amy's cute face, big breasts and flat tummy. She looked far more mature than she looked.

          "This is awesome! I'm going to take lots and lots of photos." Toby said picking the camera. "Oh, and this feels so good!" He said cupping his new boobs. Been only 15, this is his first contact with female parts.
          A couple of hours later they decided to swap back. Toby found that his arm and dick were sore.
          "Hey sis! Go easy on my body next time, ok?"
          "Ha, the same goes for you! My breasts and pussy are so very tender. What have you been up to in my body?"
          "I'd say the same as you have in mine!"
          They both burst out laughing at that.