Two parts on the same day!?  Heck yeah, you say!  Folks, I'm on a deadline to get to print, so I'm skipping some of my standard chit chat and jumping right into things.  This is December, 2021.  Also, I'm back in third person for this part.

"Oh God.  Oh God.  FUUUUCKK yeah.  OH jeeze.  Oh thank you Mistress.  GOD!!!  Ahhhhhhh.  Fucking fuck fuck, yeah!!!!"

Tina was cumming hard.  She and Mistress Mia had planned a long, fun session.  No training.  Just tight bondage, and the massage wand set for High.  Tina was in her favorite position for self-bondage sex.  Tina was completely naked unless you count a crotch rope as clothes.  Tina was kneeling, frogtied, on her deflated air mat.  Her legs her played out wide with tether ropes attached her her bent knees and her bound ankles tied down to anchors spaced out wide from her body.  The bondage forced her to rest all of her weight directly on a concave, firm foam mat shaped something like a saddle.  Embedded in the saddle Tina's massage wand, which, as already explained, was set on high.

Tina's hands were tied tightly together in a simple loops and cinch rope application.  Sometimes the basics really are the best.  He wrist tie was pulled tightly up above her head and anchored to a metal bar above her in the ceiling.  Her elbows were also tied together and similarly cinched.  Tina was wearing her ball gag and stylist so that she could peck away at the tablet that Tina had mounted with something like a aisle of her own design.  And in a bit of a surprise move, Mistress Mia had Tina apply nipple clamps.  Tina didn't have proper nipple clamps, mind you.  She instead used big, plastic "chip clips," like the kind used to seal bags of shack foods.  Tina was trying to be careful to avoid bouncing TOO much, which was a huge challenge in the throws of yet another cosmic orgasm, because doing so caused the large clips to bounce around and torment her tender nipples.

Tina heard the air compressor turn on and the mat slowly inflated underneath her.  The massage wand also turned off.  After about 3 minutes, the mat was fully inflated and Tina was about 4 inches elevated off her basement floor.  The tethers from Tinas legs up to the ceiling now had enough slack for Tina to pull her legs in together.  She'd be able to lift herself up to a kneeling position on top of the saddle mat.  And then she'd be high enough to unclip her wrist tie from the tether rope to the ceiling.

"How was that for you, Little One?"  Mistress Mia asked on the tablet.

"That was lovely, ma'am."  Tina responded.  There was a longer than usual pause.

"Shouldn't you capitalize the M in Ma'am, pet?"

"OK.  lol.  ma'aM."  Tina grinned.  Mia pretended to be annoyed but Tina thought she actually loved it when Tina was sassy.

"That was the wrong response, slut."  The air compressor turned back on and Tina felt the tethers starting to pull her legs apart.  Soon, she could no longer maintain her perch atop the saddle mat and she was riding it once more.  Her arms were also stretched out above her head as far as they could reach again.  Tina knew she was "asking for it," but was expecting at least a bit of Mia's usual friendly banter, or at least a stern warning.  Tina thought it best to end with the sass.

"Very sorry Ma'am." Tina pecked with the stylist.

"I think your training has been lax, pretty little bitch."

Tina's eyes bulged and her mouth gaped open.  Mistress Mia had been strict before, but she had always prepared Tina for it.  "OK.  This is part of the lesson, Tina thought.  Just be a good girl."

"Sorry Ma'am.  This girl will...."

Mistress cut off her response, "I think it will be Mistress tonight instead of Ma'am."

"Yes Mistress."  Tina didn't know what else to type.  BUUUZZzzzzzzzzz!!!!!  Tina was quite sensitive so the unexpected jolt of hard vibrations made her jerk upward, only her tethers yanked her back down again painfully onto the hard ball of the wand.  Tina squeezed her knees in against the saddle mat as much as she could and pulled herself up with her arms and was just able to life her clit and pussy off of the attacking wand.

"Type my whole name cunt."

Tina's arms were still fairly fresh as she hadn't been trying to avoid the wand in her first part of today's session.  She was able to stay up off of the wand with minimal difficulty.  She typed out, "Mistress Mia" and hit send.

"Guess again you little bondage slut."

Tina froze like a statue as if by not moving she could avoid the gaze of a predator.  "Mistress Sandy".

"Yes, slave."  And Tina knew it was worse than being spotted by the predator.  She was already trapped in its snare.

"Hope you're well Mistress Sandy."  Now Tina's arms were tiring, and the wand was still going.

"No, slave.  I'm not well.  I'll tell you why.  Mia, that's Mistress Mia, to you, has been lying to me.  THAT isn't your problem.  What IS your problem is that she's been lying to me about YOU.  And that pisses me off to end.  Do you want to know why that pisses me off to no end, slave?"

Tina didn't want to know at all, "Yes Mistress."   OH HELL.  "Sandy.  Mistress Sandy"

"That was close bitch.  lol.  Here's why.  Because I own that fucking bitch Mia.  And she owns you, which means I ALSO own you.  And Mia told me she was training you correctly.  She told me she was training you to serve me.  And I'm a sexual sadist, as you know.  So that has standards.  And she has definitely NOT been training you up to those standard.  So now I have to step in.  And THAT, pretty little whore, THAT is your problem."

Tina was legitimately worried now.