Sitting down on the seat, Jen realized who she was sitting with - or, more specifically, who they were.
Bri, the school's most well known slut, had arrived wearing her typical clothing - namely, a pleated microskirt that sat high on her wide hips, barely even long enough to cover her waist let alone her crotch. Clearly on display was her transparent thong, showing her soaked and puffy vulva through the fabric.
Feeling the curse act up again, Jen looked down in morbid fascination as her skirt shrank away to mimic the slut's, followed by her panties shifting to a black transparent thong as well. Thinking her transformation was over for the moment, Jen was extremely surprised to feel the curse act up again, before watching in shocked silence as her hips and pussy swelling to mimic her seat-mate's size, before quickly soaking itself with femcum that never seemed to stop leaking - making her look like she was always horny and down to fuck.
Now quite bottom-oriented, with an ass that jiggles with every step and no way to not have an explicit cameltoe always visible, Jen sat stilled for a second before tears slowly fell from her eyes.