This beautiful girl shows an abnormal reaction at the deepest part of her vagina, near the cervix. With a cock that clearly won't fit in her narrow pussy, she repeatedly pistons until she reaches an orgasm so intense her eyes roll back, and her cervix opens wide. Then, with an insane amount of cum, he finishes her off in one go. At that moment, her face seems to be smiling strangely, and she's no longer the Mikako everyone knows.
