Her brother was the perfect person to curse. He was the only one home right now, which means no one would bother them for a while. She could finally live out her fantasies of fucking a horse. A giant horse dick... Her panties were already wet. Standing up she went to her brother's room.
"Hey, Eric, ever heard of transform or dare?" He looked up from his computer. "Huh? That old rumor? It's a load of junk." "Oh, one of the girls was talking about it at school, saying they might know who has the curse right now." He looked at her like 'whatever'. Jen babbled for a little more before she said. "Well, I hope you believe because now you get both!" Eric looked dumbstruck, but Jenny cut in. "Ah, no talking now. First your dare. You will dare me to accept the curse, then go outside where you will start your transformation."
"You will turn into a massive horse, with a massive horse cock. Your cock will be at least 4 feet long, and as thick as two cans of pop. Your balls will swell up to be the size of soccer balls, and able to hold several gallons of cum. You will also be able to regenerate all that cum very, very quickly, and you won't have any downtime between fucking. As for fucking, you will love fucking me, and will always be able to get off from fucking me. And the best part? No one will thinking me spending all my time fucking you will be weird at all. In fact, they will be super happy that I get to suck on your giant horse dick all the time! Ok, you can speak now."
"Transform or dare." Eric spoke mechanically, having no control. "Dare." Jen bounced on her feet, feeling herself get more and more wet. "I dare you to accept." "I accept! Now out you go!" Eric stood up and walked into the backyard, his body already stretching out. Jenny followed him but hardly saw his transformation, only that her new stud was outside in the backyard. As Jen stripped down near giggling her neighbor chimed up. "Out to have sex with your horse again eh Jen?" "Yep! I love it!" Her neighbor chuckled and went inside.
Jen slid under the horse, and felt the head of its cock slide against her pussy and ass. She shivered, happy to finally, finally be doing this. He didnt wait, thrusting into her and bottoming out easily. Jen cried out in pleasure and pain from being stretched to this new extreme, but it quickly turned into a constant stream of moans as the cock rammed into her like she never expected. She came several times, each time the walls of her pussy gripping down more and more on the giant cock inside her. It wasn't long before he let out a long neigh as he emptied gallons of cum into her, the excess exploding out of her. He didnt even wait for her to go again, pulling out and shoving his cock into her ass.
They spent hours fucking, Jen's screams washing over the neighbor hood like the cum washed over her backyard lawn. She finally fell to the ground under his cock, fresh cum falling down onto her as she scooped some into her mouth to eat, and more into her pussy with her other hand. This was pure bliss.