Happy birthday to my wife's sister

Today is Zlata Shine's birthday and girlfriend Sofia Lee has a gift for her: a remote controlled vibrator for Sofia to insert into Zlata's pussy. Sofia will be so happy that the vibrator stops working
... even after Zlata's forgetful mother comes to wish her a happy birthday. Zlata's mother noticed Zlata shaking uncontrollably and insisted that they go to the hospital for a checkup. The sexy doctor figures out what's going on and finds a way to turn this sexy lesbian fun into a proper threesome.

Happy birthday to my wife's sister