the first time i met her sister, she was a shy and introverted girl. i couldn't ignore her submissive nature and felt both interest and lust. as i rubbed her exposed nipples through her clothes, her face quickly turned into a masochistic expression. excited by her helpless face, i thoroughly trained her nipples! with just a little stimulation, she grew into a nipple-orgasmic and premature ejaculator. i turned her into an obedient nipple pet and fucked her pussy, creampieing her over and over.