Your sister standing above you.

You awake in the morning and see your sister standing above you and as you wake up she notices and says.

"Last night was really good want to make this morning better?" she winks with the last part and you can feel yourself getting horny as you flip off the covers to reveal your cock. You both look down and notice your flaccid cock, you sister smirks and says.

"Why don't you repay the favour from last night to give yourself some time?" with that she takes of her panties and climbs onto the bed. She climbs on top of you and lowers her pussy onto you face. You start doing you best and eat her out. After a couple of minutes you start to get the hang of it and she starts moaning more and more. Eventually she ends up cumming directly into your mouth. You start to push her off so she can return the favour but she waits until she has fully finished before climbing down in-between your legs and starts sucking your still flaccid member. After a bit she stops sucking your dick and starts sucking a finger and then runs it along you asshole. You had never done anything like this and let her go ahead and put a finger in. At first it was a bit uncomfortable as she slowly inserted her finger. Eventually she got to the second knuckle and started to wiggle her finger in your asshole. With her wiggling she managed to hit a spot that felt amazing. She keeps rubbing that spot as you feel your dick lurch and you feel a wave of pleasure flush over you as you feel your sister lap up your cum.

"Clearly the power works" your sister says with a smirk. You don't quite understand her statement and give a confused look.

"How did you enjoy your first anal orgasm?" she says barely able to keep a straight face. As she says this your mind starts to really put together what just happened.

"I mean the first part was pretty obvious but i couldn't think of another way to take the powers from you."
"What do you mean i am the extractor not you" you say trying to re-establish control

"Wow so i do have to spell it out for you. Kast night when I asked how long you had been an extractor for got you thinking about being an extractor as you came and as I took that load i got the powers of an extractor but also at the same time made you cum making you lose the trait."

"So I'm no longer an extractor?"

"For fucks sake, no your not, next i made you obedient and then sent you to bed. Then this morning before you woke up i told you to not get hard unless i tell you to while you were sleeping. Then when you ate me out i made your prostate extra sensitive and finally made you cum out your sexual stamina. So you went from an extractor to an obedient quick shot"