Emily grinned mischievously and said "Well, it's obvious you have a thing for your little.. make that twin - brother. So..." She began to shrink, her face changing into something very familiar. Her clothes shifted to match mine, and a few seconds later I was looking at my identical twin! The blonde boy stepped forward to pull me into an embrace, and this time when we kissed, it was matched. I was afraid I might be bothered about kissing my own brother like that, but at first I figured this was just Emily in another form. Then, as we got into it, I was just thinking how hot my brother was, and how much I had wanted this.
I felt hands slide under my shirt and start to lift it up, and I did the same to her - his shirt. We pulled them off, and then fumbled with each other's belts. In another minutes we had completely undressed each other. Emily was erect as I was, and despite our young age, we were pretty decent sized. The hairless, uncut cocks were maybe 6 inches hard, jutting out over smooth, but swollen testicles. We fell across the bed, hands sliding over smooth skin, tongues twisting in each other's mouths.
That's when...