The gift I received from a friend turned out to be a vibrator! My sister, who is very reserved but has a stronger interest in naughty things than anyone else, couldn't resist her curiosity and inserted the vibrator! With the vibrator as her first partner, she indulged in daily masturbation! She was overwhelmed by the pleasure of the vibrator and her fantasies! However, her longing for naughty things grew even stronger, and she became unsatisfied with just the vibrator, so she asked her brother to lend her his real penis...
