I wanna have sex with young girls.
To totally hammer some cute and voluptuous babes.
Bang the fuck out of them and make them all gapefacey.

That's what the protagonist of this story was thinking about.
A bachelor in his 40s, no girlfriend or wife but loads of libido.

While working at a drug manufacturing company he was secretly produced a certain drug: "Gapeface Supplement".

He takes it with him to a paid date and...

Bangs the FUCK out of two JK girls, turning the girls into a melty mess and training them like pets to be his very own free to use whore holes!

[From DLsite English]