Eventually the thought of fucking her slime horse cum girlfriend became too much for Gemma to bear. Her cocks were hard as steel and her balls churned with seamen needing to be released.
Isaac took one look at her girlfriend and could tell what she was thinking.
“Fine.” She said, also wanting to see what sex was like in this new body aswell. “Come over here.”
Isaac laid back on the bed, slowly spreading her dripping legs as Gemma leaned over her with her 10 horse cocks.
“So how’s this gon—“ She didn’t get a chance to finish as Gemma immediately rammed her full of all her equine manliness at once. The sensation like nothing she ever felt before Isaac felt like she was about to be split in half. She cried out.
“I’m sorry I’ll pull out.” Gemma said backing away from the bed and standing up.
“DON’T YOU FUCKING DARE!” Moaned Isaac clamping down. As Gemma stood her erections brought Isaac up with her, smacking the cum girl right in her face.
She felt her face reform and started making out with her face. Her hands working their way through her shirt to stimulate her nipples.
“Isaac… fuck I’m abo— nnff— I’m gon—- oh fuck!” Gemma’s head rocked back as she blasted her full load into her cum girlfriend.
Her belly inflated similar to Margaret, breasts increasing to the size of watermelon melons.
Isaac slid off her into a puddle before reforming. Her body was now 7 feet tall, had the aforementioned watermelon sized breasts, and looked 9 months pregnant. Her legs were bowed and between them dripped.
“That… has got to be… the… best sex of my life!” Gemma panted.
Isaac nodded in agreement rubbing her stomach.
All the while Margaret just watched from the ceiling getting hornier…