Make her an addict

The girl seems to notice Sakura's look as she is pushing the funnel in to her mouth "Heh, you are wondering in fear what this device is" she states as she straps the funnel around her head "simply put, we are going to feed you a nice slow stream of masters cum, and the device will drain you of your chakra as fast as it gets in you, by tonight you will be dependent on the masters cum and have **** but to be his ****" she says as she starts the machine up and a small trickle of cum flows down the funnel into Sakura's throat and then to her belly.

Sakura can feel her body energizing up from the cum, but instantly feels herself being drained by the device, it was painful to be drained like this and she cries out in to the funnel. The girl smirks and slaps Sakura on the ass "Enjoy your session" she says walking off.