It is not at all clear that the facts as reported even support the theory that some kind of sexual activity with the woman necessarily or even likely occurred at the house.
Keep in mind that her boyfriend came to pick her up at the Kroger parking lot, and she was then wearing a see-through negligee and was still intoxicated. Obviously some time must have passed between when the boyfriend picked her up at the Kroger and when the boyfriend brought her to the hospital.