She's almost there

"I'm gona cum, Emily. I've got to pull out." Stevie told his sister.
Emily knew she was about to cum, but if Stevie pulled out now she wouldn't.
"Not yet, ahh, i'm almost there, mmh." She begged him
Not wanting to disappoint his sister, he kept fucking her a little longer.

The squishing noises his cock made in her pussy didn't help much. If anything, they made his orgasm approach even faster.
"Emily, i really got to pull out now."
"Ahh, ahh, al ... most .. there ... ahh ... ahh." Emily said between squeels.
"EMILY!" Stevie yelled at her.
"ALMOOOST!!!" She yelled back

And then Stevie came.
His cock exploded, still inside his sister, sending millions of sperm into her.
When Emily felt her brothers warm seed filling her, she threw her head back and screamed out her own orgasm.

"i'm sorry, Emily." Stevie said to her.
"No, it's ok, i told you to keep going." She said while turning her head towards him. "Thanks for that. I really needed it."
Then she kissed him.

Later on, they both had put their clothes back on and Stevie had left her room.
Emily was thinking. Was the curse real? Did her brother make her pregnant? She didn't know.