Warning, this comic does have Lolli and Dickgirl.
The process is off panel, but it's pretty neat. Would love a translation of this one to find out exactly whats going on. Basic premis of what I've got from it though. Is the dark haired girl has these pills that make her body older, which the blond girl keeps knocking out of her. Which of course, makes her younger. Eventually the dark haired girl gets a couple of pills out of her to take away her penis lol.
Download:
Na-raku no Sekiju o Shiboritore