She' a pervert, yes, but the adorably innocent way she cries whenever she is rejected reminds me of the adorably innocent pervert Saebar Ryo from
City Hunter, all the way back in the 1980's...
Come to think about it, Kuroko-chan is a LOT like a female version of Ryo-chan, isn't she?
Cute, funny, sincere, immature and CANNOT keep it in her pants even if her life depended on it.