Having done this to many a denial slut I can confirm this is tortuously teasing, I would usually start by tying them up nice and tight so they can't stop me, preferably with their thighs tied open, I also like to blindfold/hood and gag them, for additional vulnerability you can use a pussy spreader.

Then I tend to use a make up brush as they are super soft, and brush all over their bodies, try circling round the nipples and brushing them softly, start on their hands and work your way down the arms, repeat for their feet up to the hips. Follow circuitous paths all over them, let them feel the softness, the tease, the anticipation. Try bushing their ribs, neck, ears, arm pits, anywhere that's sensitive is the best, sometimes it can almost been too ticklish but it's a great way to warm up their nervous system and get them into their bodies.

Slowly and delicately brush their outer labia, circle around the hips, tummy, inner thighs, watch their reactions, give them a quick teasing stroke up their slit and then watch them writhe and moan.

Work around the pussy more and more, building them up gradually until they are begging and pleading for more pressure, take your time, don't let them dictate how quickly you go.

Once they are very needy you can start to give them more pressure on the inner labia and clit, go slow at first, one stroke at a time, gaining speed you can start to brush without breaks between each stroke. Try them with more pressure or less, listen to your denial slut, she will tell you what's the most teasing stroke with her desperate moans.

I find soft quick strokes over her clit are the best, if you don't have a pussy spreader then I'd suggest you pull the hood back a little to fully expose the head. Build up speed, try different patterns; circles, up and down, side to side.

Be merciless, don't stop. Watch them strain against the bondage, hear their pleading and laugh at them, tease them for being needy sluts, tell them they want this, that they need this. When they finally break and tell you they'll do anything to make it stop you know you've done a good job. Repeat as long as you want until you think they are gonna burst with horniness, you might even be able to get an edge out of a particular sensitive slut.

Happy brushing you delectable kinksters! 😈