Sorry for my late reply- life keeps me busy.
The spiked pliers you think of are great! Up to now I only thought of spikes -or- pliers.
What I am dreaming about breast-torture:
The contrast of the cold, sharp steel of a needle with the soft breast's flesh and skin is a turn-on itself. Imagining the stinging pain, when the steel slowly (!) bors into the breast …
Before beginning, my playpartner ( in real) / victim (my fantasy) must watch the shinig needle, feel the tip scratching over the skin, drawing red lines and painful ornaments.
I can not get enough: So one of my favourite fantasies is, to fill the whole breast with 30, 40, 50 (?) needles. Keeping aureola and buds till the end, then testing how many needles a nipple can take.
Depending on how cruel the evening continues, the needle-fileld breast feels my clapping hand or the belt. I imagined often to whip onto the needles, but it would for sure destroy the breast beyond repair.
In my fantasy I do the same to the labias, but never did that in real life.
(Sometimes I draw my fantasies and pick up that passion).
As an escalation I wrap petrol-soaked cotton-wool around the needle-heads and light them.
The breast must look gorgeous, when one cotton-ball lights the next one.
I tried (in real) to stick pointed matches into the skin (tried it at myself), to have the same effect - but the wood ist to soft, you can not break the skin.
When the girl is on all fours, one can stick a longer needle horizontally through the breast, above the aureola, fix a thin chain to each end of the protruding steel. The chain holds a small pot with a candle (a tea-light), which dangles under the bud. Once lit, it would burn the nipple and the aureola, unless she moves her breasts to keep the candle's flame in motion.
You can combine it with p. ex. fucking her from behind: She will never stop moving...
