Lost (part 22) (Patreon)

... He felt his vital energy leaving his muscular body through his "little friend' ... It was like  an endless org***sm that could not be interrupted. His rationality realized the happening was weakening and even killing him ... But the ancient reptilian part of his brain was stronger than the human mind...

... The evil princess moved faster and faster, feeling how her body was getting stronger, how the muscles were filling with pleasant elasticity.  Her black long claws became even sharper, while her skin suddenly began turning red... With each passing second, she became even more sexy, more desirable, forcing her victim to give even more energy, finally turning the powerful knight  into a decrepit old man...