When I was a student in London UK, I worked at a Hotel in Housekeeping for extra money.....I once 'caught' a curvy, middle aged business woman doing similar on the Hotel bed.....I knocked twice, got no reply, so as was usual, I entered, and she was on the bed naked, her back to the door and was wearing headphones.....she had her laptop open in front of her and she was watching a video of two older women having lesbian sex as she was astride a pillow, humping firmly! I was a little shocked, but I admit that as she had not seen or even heard me, I did watch her for longer than I should have!