There is a game called Queen Hunt. You can inject a vaccum in a girl that produces a dick growth. Later you can give more injections to get it bigger, and later bigger, two or three times. You can also stimulate it in every size.
Start the game with the redhead girl, in scene 01.
You need to stimulate the girl in the tits or pussy (with click), then a go to the menu "Commands", it would appeard some buttons (in japanese). The first is to give a blowjob and the second it's to start with the injections.
It's weird that this wasn't be postede yet.
Enjoy it!
http://www.mediafire.com/?wy3tdiimmzd
PD: Again, sorry for my bad english.