I doubted my eyes for a moment... My sister, who was supposed to be doing her homework, was reading an erotic novel while masturbating with her vibrator... She was stimulating her clit with her right hand, pinching her nipple with her left, and reading the text aloud to fuel her fantasies, sending commands from her brain to her loins to drip with arousal. Those commands continued until she reached orgasm... My sister is an incredible pervert...
