You feel guilty and want to make this as nice for Abbie as you can. Ask her what she likes.

As soon as you’re in the room and the door has closed behind you, Abbie turns to you. Her hands grab the front of your tee shirt and she pulls you into a long, passionate kiss. You return the kiss tentatively. You’re still not completely comfortable with making out with your sister. As she pulls back, she’s smiling wide, and looking at you with a loving expression.

“You’re being sweet, but you don’t have to,” your sister tells you. “We both know you’re in charge, you can do anything you want with me. Make me pay for all the teasing I’ve over the years.”

You frown at that suggestion. “Abs… I don’t want to make you pay. I’m already feeling guilty for doing this to you. Besides, I never really minded when you teased me. It was kind of like having a pretty girl flirt with me.”

Abbie gives you another quick kiss. “I still think I may have been subconsciously flirting with you all along. But there’s absolutely no need to feel guilty about putting the spell on me. If you want to feel guilty about anything, it should be wasting time when you could be fucking me, Stretch.” She slides her hands under your tee shirt and pushes it up and off over your head.

“I know it’s just the spell making you feel that way though, so I can’t help feeling bad about it. At least tell me what you like, so I can do that for you,” you say.

Abbie’s hands glide down your chest, over your stomach. “I like pleasing you, and doing what you tell me.” She unbuckles your belt.

You sigh, “I should have seen that one coming.” You think for a moment of how to word your next question, which is hard to do with your beautiful sister unzipping your fly and pushing your jeans and boxers down. She gives a small gasp when she sees your hard cock and starts to slowly stroke it.

“Ohhh… OK,” you manage to breathe out, “Tell me truthfully: Before Monday night, what was the thing that you did or fantasized about doing that turned you on the most?”

Her stroking hand tightens slightly and speeds up just a bit as she thinks about the answer, “Truthfully,” she licks her lips, “I’ve always been turned on by being dominated. I had fantasies about being ****, used hard, and trained to be a ****. I’ve messed around with submitting to a few guys; mostly bottoming in S&M scenes and being a bedroom submissive. It was always hot. But I never found anyone who I could trust to give myself to fully. I wanted someone who could make me obey without question — a Master.”

She slipped down to her knees in front of you. “You did it without even giving me a choice,” she said in a breathless voice that sounded like pure lust. She looked up at you with her eyes half-lidded. “It’s even better that way.”

If you hadn’t ordered her to answer truthfully, you would have suspected that she was making that all up because she thought it would please you. Your cock twitched and drooled precum in a long, sticky line to the floor.

You still have trouble accepting her answer. “Hold on! You’re telling me that even before I enchanted you, your fantasy was to be turned into a sex **** against your will?” you ask doubtfully.

Your sister’s hand gripped your cock tighter when you said ‘Hold on,’ but then she relaxed her grip and returned to her stroking as you continued. Abbie shrugged. “Lots of girls have submissive fantasies. Is the fact that one of the three girls you enchanted is a sub less believable than the fact that magic is real?” she asked, with a chuckle. Then she dragged her tongue over the very tip of your cock, tasting your precum. “Who knows, maybe the magic works backward in time and changed me in the past.” She licked again. “Maybe because you can do magic, the universe is aligned to give you what you want, and you were destined to enchant me.” Another long, slow, sensuous lick. “Maybe you’re just the luckiest perv in the world, Beanpole.” She moved forward and slowly slid her lips over the head of your cock, twisting her head back and forth and moaning as she did.

You had to lean back against the door to keep your knees from buckling, as Abbie worships your cock with her lips, tongue, and hands. Tracey and Leah had both been enthusiastic to please with the blowjobs they gave you, but Abbie has experience in addition to enthusiasm, and you think she must be using every bit of the knowledge of pleasing cocks that she has. If not for the Inuus spell, you’re sure you would have lost control in no time.

Your sister pauses her sucking and licking to grin up at you. She traces the tip of your cock back and forth across her lower lip. “So, if you feel guilty about making me your ****, little brother, the best way to make it up to me would be to treat me like a real one,” she says in a teasing, tempting voice.