"Well, if you say it's safe, what harm could it do..?" naively replied the young lady.
"Excellent, let's get prepared! You remove your clothes, there's a subject table over there that you can use. Lie down on it, i'll strap you in and we can begin."
"Wait, strap me in? Can't we just go to the bedroom or something?"
"No, no, no. Silly girl, don't you understand this is scie... err, magic!"
Morgana strapped Lucy into the stirruped harness and raised the table using the makeshift mechanism. Lucy hung there, presenting her diminutive vagina, topped with a neat tuft of pubic hair. Morgana re-entered the room. She proceeded to remove her clothes apart from her brassiere. She approached the lady, took hold of the penis, lowered it in line with Lucy's sex and made eye contact. "Ready?"
The lady looked petrified and stumbled over her words. She eventually managed to nod and mouth yes...
"Look, trust me, just close your eyes and take a deep breath..."
Lucy closed her eyes, as instructed. Before she had a chance to refuse further, Morgana made her move. She reached out with both her hands, placed her fingers on the top of Lucy's mound and used her thumbs to part the labia, then she slowly but forcefully inserted her penis into the young girl's folds. Lucy's eye opened wide... "CHRIST! You're too big! I thought you needed t-OH, CHRIST YES!" screamed Lucy.
Morgana was concentrating hard and missed Lucy's question. Unsurprisingly, she was a bit of an amateur at this. 12 hours of prior masturbation had also sapped any idea of fun from this game.
"Right, Lucy, ideally, we need to try and climax together. It'll increase the chance of success!" "Yes, yes, ok, yes" panted the girl, trying her best to move in time with Morgana's thrusts, something which wasn't easy due to the stirrups.
The 'experiment' continued for a few more minutes before Lucy started to reached her limit.
"I'm... I'm... I can feel it..." screamed Lucy. "Hold on, I'm nearly there too" replied Morgana, who picked up speed. Lucy couldn't hold it anymore - her orgasm struck, sending ripples through her vaginal walls. The tremors were enough to bring Morgana over the top, who felt a contraction in her crotch at the same time, closely followed by the feeling of warm fluid shooting through her cock.
Both girls nearly passed out, Morgana collapsing onto Lucy, panting. After regaining their senses, Morgana lowered her helper down and looked at her crotch...