First I'd make her wear a chastity belt for a few weeks so she is really sensitive. I'd take her. Remove all her clothes. Strap her to the bench part of the machine, securely. Then I'd align the machine, and turn some knobs. Make it go slowly at first, teasing, in and out. Her pussy is so needy and sensitive from the denial, that she'd soon be begging to make it go faster. That's when I would turn the speed slowly up. Make her lower body thrust against the dildo. Just as she neared climax I would turn the speed down again. And I would repeat this again, and again, and again. Till her pussy juices start dripping on the floor, and her whimpers have turned into high pitched moans. Soon she'll be begging me to let her cum, but I won't let her. I'll keep getting closer and closer to the edge, but never over. I'd make her lose her mind.