The final trial

The girls finish licking up the rest of the mess on the floor and once they're done, return to their knees, looking up at you awaiting instruction.

"Alright girls, it's time for the final trial. This one involves punishment and testing to see who's the bigger painslut."

They look up at you with devillish grins, both of them enjoy having some pain mixed in with the pleasure, if the two were even separate for them.

"Stand up and follow me."

The twins stand and follow you as you lead them down into your basement. Tracy never really came down here and so in the time since she had revealed just how much of a masochistic slut she was, you had installed a number of different bondage devices. Tracy and Mia's eyes widen with lust as they look around at the well equipped sex dungeon you've set up in your basement. The room is well equipped for punishing two sluts in need of discipline such as Tracy and Mia. Dangling from the roof is a hook which can be used to suspend a bound slut if needed. In one corner is a chair with stirrups like you'd find in a gynaecologists office. Up against the wall is a metal cage made to house submissive slaves such as these. There were a number of other kinky apparatuses littering the room like tables, chairs and some ropes hanging up against the wall.

However, the one that you'd be using for this particular task was an X-shaped cross up against the far wall of the room. Alongside it was a wall mounted rack holding a number of whips, floggers and paddles.

"Oh fuck." You hear Tracy say from behind you and think perhaps this wasn't the kind of thing she's into. However, when you turn around you can see she and her sister are massaging their pussies as they take in their surroundings, Mia even has her other hand on her breast playing with her nipple.

"I thought you'd like it slut. So, are you two ready to begin."

The two of them each look at you and seductively whisper "yes sir."

You move over towards the cross and the sisters follow you, realising that this is what they'd be using today.

"Tracy, you can go first."

She looks the cross up and down, inspecting how it works. It's a simple bondage device designed to bind the user with their arms and legs spread, completely exposing their body to their master. Once she works this out, she steps into position, planting her feet wide so her ankles are lined up with the metal clasps, which you lock into place. She then sticks her arms into the air and you bind her wrists in the same way. Her tits and pussy are now as exposed as they could be and she has no ability to protect them from what's to come. You then grab a ball gag and place it into her mouth, latching the clasp behind her head.

With Tracy locked in position you move to a nearby table and collect a bucket filled with wooden clothes pegs. You bring it over to Tracy and start clipping them onto her body.

"Help me do the other side whore."

Mia snaps out of a Trance, previously having been looking on with anticipation as she realised everything that was about happen to Tracy would happen to her too. She grabs a handful of clothes pins and starts mirroring the one's you've already placed on Tracy's body. You've made a neat line going down from her armpit, to the outer edge of her tits, to the side of her waist and then some more on her inner thigh.

You then add additional pins to cover the lower edge of her tits, with two more on either side of her nipples. Tracy bites her lip with angst from the pain of the pegs pinching her skin. You then apply some more to her pussy, attaching four to one lip with Mia mirroring this on the other. You then add the final touch, one peg straight on her clit. Tracy whimpers at this final addition, as you punish her most sensitive area.