When your girlfriend decides that she's going to spend the evening on the couch in decadent embrace with her largest vibrator, that probably means you are not invited. But there's no reason you can't watch!
And if she's going to grab her machinery, you can certainly grab your own. It's only fair, right? She uses the vibrator to pleasure herself now, and you—with your trusty camera—will use the video of her masturbating to pleasure yourself later. If you could only collapse the time-space continuum, you could have some mutual masturbation going on.
· Horny Slut Going To Town On Herself (pornhub.com)