Using the poky-zappy thing on very specific inside (and outside) parts of Nina’s cunt, then fucking them with a steel rod.
Slapping Nina’s cunt until it's red and swollen after I’ve fucked them with a steel rod.
Applying sous-vide cooking to BDSM, via heated metal on Nina’s sensitive bits.
Working a really large heated trailer hitch into Nina, followed by a heated steel chain.
Nina stuffing themselves with hot steel chain, then having their cunt clamped wide open.
Spanking Nina’s ass and very very sore cunt, then fucking them with the steel rod.
Nina taking the bigger trailer hitch extra-heated, then as much hot steel chain as I can fit into them.
Using big heavy trailer hitches heated to 120° Fahrenheit inside Nina.