Let's go the opposite way now! If you know your partner's pleasure triggers well, consider using sex toys to really "torture" them - and I mean that literally! Continue sexual stimulation after your partner orgasms. If they aren't capable of multiple orgasms, it's going to feel really, really intense very quickly! If they're capable of multiple orgasms, you just keep going until their body is so exhausted from multiples that they'd stop if they could! Refusing to stop pleasuring them until you're done with it - not when they're satiated - is a fun way to reinforce the D/s dynamic and show who's really in charge. Remember, though, that you can only torture someone if you've received their express consent in advance. You should also have a safeword to ensure the fun stops when they want it to.
Don't forget about the improvements in sex toy technology! New technology affects every aspect of our everyday lives - including our sex lives! Vibrators, male masturbation sleeves, and butt plugs can all be controlled from afar with an internet connection. Yes, that's right. While your partner is away on business, you can still stay sexually connected by controlling their sex toy from afar. Or you can keep it close to home and require your partner to wear a butt plug to work - one that you can control from the comfort of your favorite chair. (Check out a review of a super-cool set of high-tech toys, the Fleshlight Launch and OhMiBod Couples' Set.)
Your sex toys can work wonders for "humiliation"-based scenes. If you frame it correctly, what would be more embarrassing than being forced to hump a dildo when a perfectly-usable biological penis in right is front of them? What could be more shame-inducing than only giving your partner 30 seconds to cum - and they either make the deadline fantastically or fail miserably? Don't forget that sex toys can open a wide range of doors into embarrassment and humiliation if that's what the two of you love!
Read: Think Humiliation's a Turn-On? Here's How to Talk to Your Partner About It
Some things can be hard to accomplish while you're right in the middle of the action. For instance, punishing your submissive, vagina-owning partner by only allowing a few thrusts that happen only at your command can get awfully distracting if you're using your own penis in the process. In that scenario, and in many others, consider the fun ways that sex toys can become tools for your needs. Want to make him choke on a penis while pegging him? Well, a threesome may not be in the cards, but a suction-cup dildo on the wall might be just what you need! Do you love the idea of tying up your partner and providing insane amounts of stimulation without the little bit of clitoral stimulation she needs to orgasm? Consider vibrating nipple clamps and an internal vibrator for the vagina while in the middle of anal sex.
The point is, sex toys are a tool for your use, which means they can also be used as a tool to reinforce your power exchange dynamic at any time. You just have to change how you think about them - and get creative.
One final tip: what makes any of these sex toys useful for reinforcing your dynamic is the thought process behind it. You might have planned an intricate scenario to make your partner feel submissive with a dildo, but unless you share those thoughts with her, she may just enjoy it as regular, non-dynamic time. What makes (or breaks) your scene will be the mindset of it. Make sure to be vocal and verbally remind your partner about the significance of what's going on. In addition to reinforcing your dynamic, it'll make your scene hotter too!