You gasp as the same white heat that had enveloped your hips and had given you such pleasure as they transformed now slides down from there. You feel streaks of heat moving down from the bottom of your hips into your thighs, through your knee, and down your calves and shins. It is so much area that you can't breath. Your vagina burns, a desperate and pleasurable burn, as your legs tingle and shift and change. Your thighs fill out, as if they resent the separation your wide hips forced on them. You watch in horror as your thighs become thicker and thicker. Even with your very wide hips, your thigh gap is reduced to mere inches. They are so hot, and you can barely keep your eyes open. The transformation feels so overwhelming, so pleasurable, and the feeling in your new vagina is so intense, you know several minutes pass in this state. Those minutes feel at once like an hour and like only a few seconds.
When it's over, you wait for the heat to dissipate, and then you, out of breath, gaze into the mirror. As you feared, your whole body from your hips down looks like it belongs to some thick woman, but from your navel up, you are definitely a man. The strange area between your naval and the top of your hips looks unnaturally stretched to join the two halves together.
"That was quite a show!" says the woman, gleeful.
The irritation of knowing that she was watching you and loving every moment of it causes you to grip the potion tightly. You begin to plan your move, but your attention is drawn as you feel her hand on your thick thigh. She jiggles it back and forth. On the one hand, you resent her touch, but on the other, the sensation of having so much flesh on your leg, loose and moving, is strange and fascinating, so you let her play.
"These legs are so big," she chides, "they match your enormous hips." Her eyes meet your angry gaze. "Well, the transformation has to move up, now, doesn't it. I suppose you'll have a plump belly and full tits in a few minutes. I can't wait to watch you fatten up. And once you're fully a woman, then I expect the animal changes will begin. Maybe you'll become a bloated cow, that would be fitting!"
You have been insulted enough.