You sneeze loudly. Almost instantly you’ve become female. The second you sneezed your hair shot upwards increasing in length, your chest instantly inflated to a massive G-cup, your hips and waist shift to a feminine figure, your butt also inflated instantly and your penis is sucked into your body leaving you with a vagina.
You start to shout at the genie. Infuriated at why he would do that even if you did want to carry on experimenting as a girl.