Long enough for her to completely submit to him!

Mother Superior groaned as she felt an unfamiliar feeling in the pit of her stomach, it grew and grew, making her nervous. Looking back at The Inseminator, she asked what was happening to her.

"You're building up to an orgasm, here, let me help you!"

The Inseminator grinned widely as he reached down and quickly found Mother Superior's clit, he timed his rubbing of it with his thrusts, making Mother Superior squeal and then it happened, her body seized up, her mouth fell agape in a silent scream and her pussy clamped down even tighter than before on The Inseminator's cock.

The Inseminator smirked before going back to his duty, steadily building up a head of speed, his hips becoming a blur as Mother Superior gasped and whimpered as more and more orgasms poured through her body. The Inseminator reached up to the top of her habit and forcefully ripped it in two,

"You belong to me and my Mistress now, understand?"

"Y-Yes... Y-Yes... Forgive me for this my Lord but... JESUS FUCKING CHRIST I'M CUMMING AGAIN!"

The Inseminator was glad her room was the farthest away from the others with the language that she was now using would make them want to say some Hail Mary's. The Inseminator reached up and started playing with Mother Superior's surprisingly firm tits, rubbing the nipples while using them as handles so that he could pull himself even deeper.

Mother Superior whimpered as she felt The Inseminator's cock penetrate deeper and deeper until finally he popped through her cervix, making the older woman go cross-eyed once again, once he felt his cock go past her cervix he knew it was time, holding his cock as deep inside Mother Superior as he could, he released his super-potent seed, which combined with the fertility **** that they'd been pumping through the ventilation shaft guaranteed impregnation.

"Now you've really earned the title of Mother, or at least you will in 9 months or so..."

Mother Superior slumped forwards, keeping her ass up in the air, somehow knowing internally that this was the right thing to do.