Ball gag
You manage a medical testing facility and are quite busy. There are a ton of research programs and not enough time, but fortunately for you, there are lots of eager young subjects. You want to help, yet those poor Millennials are drowning in school loans. To spare your conscience, that's what you tell yourself, anyway. Lily Lane and Kira Noir are your two new test subjects for today. They will soon learn that the topic of today's investigation is rough sex, even though they are not aware of it yet. Your specialty is dominance experimentation. Now take notes while Lily rides your fat cock while you put on your VR headset.
