The stars looked beautiful. Vect and Sara were sitting away from the camp. "Thanks for coming Vect."
"Sure. I wanted to be here for when it happened."
Midnight was approaching and counting down to Sara's birthday.
After a few minutes of silence Vect looked at Sara, "I wanna tell you something Sara. I-"
Sara let out a gasp as she began to break out in a sweat.
She sharply turned her head to Vect, eyes glazed over and pushed him on his back as she moved to straddle him.
"Sara wait i-," Vect gasped as Sara began to grind against him. In the pale moonlight Vect saw her skin taking on a deep purple tone as her breasts inflated, tearing off her top and taking up the majority of her torso.
Sara ran her hands through her black hair as she gyrated faster. Her hips and rear grew wider, followed by her tail elongating and thickening. Her horns lengthened as new ones sprouted out looking like a crown of twisted black horns. A weight on his abdomen drew his attention as he looked down to see a bulge pushing against her loincloth. Her growing dick pushed past one foot in length as its head was exposed to the air. Her balls growing larger pulling the skin taught. As it reached 2 feet he saw a look of hunger in Sara's eyes. Grabbing him and flipping him on his stomach, Sara tore off Vect's pants and grabbed his bare cheeks. "Sara don't! It won't fit." Sara slowly pushed her growing member inside him. Vect grabbed clumps of grass as he felt his asshole forced wider and wider. His body would not respond and he began to feel a tearing sensation. It pumped up larger and larger inside him, forcing him wider. "I'm gonna-" Vect's body gave way and he saw darkness.
Vect jolted up from his sleep in a cold sweat as he breathed heavily, trying to slow his racing heart. He looked around at his friend's sleeping forms to see if any were awake. None stirred save Jack shifting from one side to another to get comfortable. 'That nightmare was so vivid. I can still remember how my rear felt as it tore apart.' Vect shivered at the memory. He looked at his shaking hands, '3 days left. 3 days till she may change further.' He looked at Sara's sleeping shape, her tight fitted top doing nothing to hide her erect nipples. Vect rolled over to hide his growing erection from the world. Eventually he slipped back into a dreamless slumber.