Mary Jane becomes the Black Cat - Origin 14

The story ends.   
 
Mary Jane doesn't understand how she has get in the middle of Manhattan, walking through the ceilings and wearing a strange costume. MJ can't believe her eyes when she looks in the mirror, as it's not only the costume, but her body is now taller and stronger, like an action movie's star. When she gets worried about how her Aunt Anna will recognize her, she accidentally triggers the transformation's ability and turns back into her regular self.   
 
Not understanding anything, MJ thinks she's losing it. That's when the personality of the Black Cat, hiding inside her subconscious starts to influence her in order to fully merge with her.   
 
This leads to the scene saw in this page:   
www.deviantart.com/marypuff/ar…