Incorrect, by a factor of three. In reverse order: (a) it wouldn't negate the ability to do that (might negate the ability to fuck oneself*, but I don't see why it would negate the ability to fold oneself like that); ( it wouldn't necessarily instigate a chubby (I wouldn't); and © we don't know that he/she/it doesn't have a chubby, it's kind of dark there.
Now, given all that said -- those do kind of look like women's shoes.
* Hard is hard; but soft is impossible.