Derrick was absurdly tired when the two reached Jen's house late at night; selling control straps and fucking Kyle all day would surely do that to her. Little time had passed before Derrick lay down on the floor like usual and tried going to sleep; her fuck toy had done the same, finding it easy to drift into unconsciousness thanks to his mistress's warm body and her pussy caressing his constant erection. An hour passes and Derrick's eye shoot wide open. She had been trying to sleep this whole time, but found no luck in doing so. Her body felt restless; the thought of knowing she will control everyone, wearing Kyle out in public, having his dick in her whenever she wanted.... "Mmmm." She cutely moaned, her pussy squeezing the sleeping Kyle's erection.
"S-slave," Derrick murmured, poking Kyle's head. "Wake up now!" It took a few moments for her slave to fully wake, smiling upon seeing his mistress. "Yes, my mistress?" He inquisitively asked with a yawn. "I'm super fucking horny, bitch. Get to work, and remember your training. Hold it in until I allow you to cum." Derrick wasted no time in ordering her slave around. Complying, Kyle started thrusting his hips, furiously smacking against his mistress's waist. 'Yes, that's it.' Derrick thought, arching her head back and closing her eyes. Her slave's enormous rod rubs against her inner walls, sliding back and forth, hitting every point for maximum pleasure. Every motion makes Derrick grit her teeth and scrunch her dainty toes.
Then, Kyle started picking up the pace; getting even more rough in his movements, he brought his hands to Derrick's breasts and started rubbing them. This sudden rush of ecstasy really hit Derrick; her eyes almost rolled back, and leaked saliva from her lusty smile. Not long after, her pussy constricted tightly around Kyle's dick, and she released a stream of her sex fluids; she had cum before her slave. Feeling this, Kyle was undeterred in his lovemaking and sped up again. In turn, Derrick moves her arms behind her head, grabbing onto the carpet as her fuck toy pounded away at her. The slave's dick reached all way, deep into her pussy with each thrust, poking the entrance to her womb every time. "Yes, yes!" She loudly moaned, loving every second of this.
This intense intercourse continued for another hour and a half, the whole time Kyle never came once. Derrick however, had orgasmed many times in comparison. Her body was subconsciously becoming ever obsessed with Kyle's dick penetrating her pussy, lusting for these moments where Derrick can enjoy her living sex toy. Ultimately, her body has been like this ever since Kyle first screwed her in the locker room over a week ago; of course, Derrick didn't realize this. She feels like she's completely in control of this master/slave dichotomy; and this was mostly true, but her body craved her slave's cock every second of every day. Was Kyle the actual slave of this relationship? "Ah, I'm cumming, mistress!" He moaned, as Derrick held a look of complete ecstasy on her face. "Y-yes, give it all to me, slut!" She demanded. Derrick moaned loudly when Kyle released another stream of really warm cum into her pussy, coating every inch of her wet walls and getting into her womb. The two partners lay still for a long moment, panting heavily in the afterglow. "M-more!" Derrick broke the silence, wrapping her arms and legs around her small slave. Kyle had no choice but to continue thrusting, pleasing his mistress, which in turn pleased him. The both of them continued fucking for almost the entirety of the night, not falling asleep until around 3 am.