Kyle moaned and groaned as he shoved his 28 inch horse dick into his little sisters vagina, her own 23 inch horse dick bouncing up and down "Y-your SUch a TIGHT..." Kyle shoved himself hilt deep into his sister, both of them cumming. They panted in the after glow when their mother came in "Alright you two time to get ready, don't want to be late do we?" she said "Okay mom." they responded.
Seven years earlier Kyle attempted to use the transform or dare curse on a girl named Jennifer, just wishing to have fun, but it backfired and she used it to give him a horse dick, and spread this to other people. At first he and everyone affected were embarrassed, but it was at least somewhat bearable. That was in tell it somehow mutated and gave people horse dicks for tongues.
The size of these masses made life all but impossible, not to mention hiding it was completely impossible. As soon as he learned of this, he did what he could to fix it, he used the curse that got them into that trouble, to get them out. His mom, and a few other people still have dicks for tongues, but now they could change them back to ordinary tongues whenever they want.
On top of that, by the time he decided to make these changes, he had not only grown used to his dick, but actually like it. And so he added a lot of other possible transformations, such as the as for mentioned changing tongue dicks, as well as double dicks, massive breasts (for women of course) among others.
He made the curse enjoyable, and accepted by all whom have it, and that insured that this current world to come into being (see previous chapter). Back in the present "Do I look good big brother?" asked Lily, wearing a slutty little outfit. "Yeah, you look real good Lily." Kyle responded "Hey, we're waiting." Said Kyle's younger brother, Lily's older brother, Richard (but he prefers dick). "OK, OK, were done." Kyle responded "Good, don't want to be late."