Unfortunately for Mary, she underestimated how much John's continuing animal lust overcame his extreme tiredness from the night before.
When Mary entered the kitchen, and opened the refrigerator door, the sleeping John (now 100% in the body of a lion) roused and saw the hot round ass of the human female/lioness hybrid, facing him, complete with long, waving tail (as Mary idly pondered what to eat). Lion John was upon her from behind in the blink of an eye, dragging her to the ground, overpowering her, and straddling her. In another eye blink, his massive lion cock was out and inside of her human/lioness hybrid pussy, pounding her as vigorously as the night before ....
It was immediately hard for Mary to think about anything other than letting lion John fuck her again, but she was worried that he would hurt her in his lion form (with her only as a half-lion) and she retained enough rational thought, even through the insane lust she was feeling at the prospect of more leonine sex, to realize that things cannot just keep going on like this, and that she shouldn't let John stay indefinitely in his fully lion state. Not only had he not technically agreed to her turning him into a lion, but she knew they would never get anything done if he remained this overwhelmed by his lion instincts ...
And so, with the lion over her and plunging roughly and fully into her again and again from behind, Mary weighed her options ... If she was human, John might stop because he would no longer smell her lioness pheromones so strongly ... but if she could get him to drink the human potion himself, that would solve the problem entirely ...
Struggling through both her own lust and the physical difficulty of moving while being fucked by a lion ... Mary managed to try to ....