Research and Desire was nice enough to send me their Deepthroat Trainer for free, and I just had to try it out as gesture of my gratitude. This trainer really put me through my paces! The device is connected to the vibrator that's attached to my thigh; the more vigorous my efforts, the more I'm rewarded with vibrations on my aching clit! Watch me work myself up to a shaking orgasm with a cock buried in my throat!