HKD-002 - Mother and son's forbidden pleasure, nurse mom's dangerous treatment

The premise is a mother/nurse playing with a patient, a doctor, and her son. Aside from the middle part with the doctor feeling a bit sluggish, it's not bad. However, I wish they had put more thought into the scenes with the son. The son takes the lead, but I would have preferred to see her incorporate more of her 'nurse' persona into their intimacy.