I kept going.
From dusk till dawn, I ravaged Agatha—I was merciless, savage, my cock deep inside her pussy, my seed filling her uterus over and over.
Every jerk shook so violently that I could feel it hitting inside her, her walls squeezing around me tightly like an urgent hold. "Ahh- My King! It is so hot.... aaaaaaah! " she wailed, her voice tearing, her body shuddering under me.
However, I was not affected by it.
I took her until her eyes rolled back, her breath shallow, her limbs going limp. Only then did I pull out, my cock finally spent—softened after at least eight brutal releases.
Cum dripped from her gaping pussy, thick and white, pooling beneath her as she lay unconscious, her chest rising and falling weakly.
I could have kept going.
I can't say it didn't take me some time to realize it, but finally the change was unmistakably there - my endurance had increased and my body was no longer a hostage of the old limits.