Rachel's Training Prep - Caption Early Access (Patreon)

Rachel's abs were her proudest feature. She loved them not least because they could take more punishment than any other part of her body. As the cherry on top of that cake, they were the area that her girlfriend cherished the most, leading the pair to spend hours at a time pushing them past the brink in every way they could think of. It was a glorious feedback loop of improvement and reaching new limits that led the jagged brickwork of her midsection to become even more than muscular arms or chiselled legs - which saw plenty of obsessive attention themselves.

 The former gymnast's stomach had been shredded for as long as she could remember, but on meeting Amy her skinny washboard had grown into an equally lean but doubly powerful set of cobbled bricks. Hours of cardio in the ever-warming basement had left her gasping for breath, and Rachel knew that Amy would be home soon to make everything so far seem like a light warm-up.

 The fitness addict knew that it was the standard to train abs at the end of a workout, as the core was such an important support to every type of movement. This was precisely why she was determined to destroy them now, before Amy arrived. Rachel wanted every torturous exercise for the rest of the night to be accompanied by the pain of exhaustion in her abs, as they tried in vain to summon yet more strength to support her body through all the training to come.

 She counted the reps out loud. Every fifty she would stop and hold her body parallel to the floor for a full minute, savouring the build up of intense pain and digging her fingers into the rock hard muscle, enjoying the feeling of her body hard at work. She loved the feeling of the sweat running down her skin, the tickle of her hair sticking to her wet face, and the sound of her grunts echoing off the walls.

 Rachel didn't know why she had become obsessed with exhausting herself before Amy had even arrived. Perhaps it was the excitement at the prospect of another night of torture unable to be contained, or maybe a desire to add even more intensity to a workout already intense beyond the imaginations of most...

 When Amy walked in, Rachel knew the answer. It was that smile. Amy's faint smile as she tried to cover up her excitement and arousal, taking on the Mistress persona that the pair relished. The smile that knew the groundwork was done leaving the rest of the night to be pure torture, and that Rachel was every bit as excited as she was.