You have to test to see if it really is the spell, or if she's just messing with your head

You bang your head on your desk a couple more times, but that doesn’t solve anything. Then you read through the webpage again, looking for a loophole. When you can’t find one, you latch on to a hope that magic isn’t real, and this spell is just bullshit, just like you thought it was.

It’s possible that Abbie was just messing with you this morning. She thinks you’re sexually repressed and enjoys teasing you and making you blush. Maybe she just was taking it further than usual this morning.

Wondering what would make your sister especially interested in fucking with your mind today gets you worried that she somehow found out that you had tried to cast the spell last night. Maybe heard you chanting, and she has some kind of spyware on your computer, so she knows what website you were on. Now she’s teaching you a lesson about not treating women as sex objects, or something like that. It sounds unlikely, but isn’t that more reasonable than magic being real, and you having cast a spell on her by mistake?

You need to find out what’s really happening. Abbie will come home after her last class, around 4:30 this afternoon, before mom gets home from work. You need a test to see if she’s really enchanted, or just messing with you. You ponder what you could do to see if she would do anything to please you, that you’d still be comfortable with your sister doing. She already French-kissed you today and offered to show more skin than she does in her bikini.

As you remember the kiss, a dark impulse comes to your mind that having Abbie as a sex-**** wouldn’t be the worst thing. You can’t deny how hot she is, and you did get hard when she kissed you. You feel ashamed and disgusted with yourself that you even consider that.

Unfortunately, now that you’ve thought it, the idea lingers in your head, and all you can think of to test whether your sister is under a spell is ask her for something even more blatantly sexual than what she’s already done today. The problem is that if she isn’t mind-controlled, just asking will give her ammunition to tease and harass you for the rest of your life. And if she is, you’ll end up doing something very inappropriate with your sister.

Finally, you come up with a strategy. Instead of asking her to do something, you’ll just tell Abbie about something you really want ‘a girl’ to do for you. If the spell is as powerful as it is described on the webpage, she’ll have to try to do it to make you happy. If she does, you can always tell her to stop before things go too far.

A little before 4:30, you hear Abbie’s car pulling into the driveway. The front door opens, and you hear her call out. “I’m home! Are you around, Stretch?”

You call back, “I’m in my room."

You hear your sister’s footsteps coming quickly up the stairs as soon as she hears your voice. She appears in your doorway smiling wide. “Hey little brother. How was school?” She walks into your room and sits right down on your lap, wiggling her butt as she settles in. Her arm slips around your neck. “I couldn’t concentrate on my classes at all. I couldn’t stop thinking about that kiss. Was it on your mind, too?” She asks in a teasing voice.

You steel your nerves to carry through with your plan. Trying to sound as casual as you can, you nod your head. “Yeah… it was. It got me thinking that I really need to find a girlfriend. I can’t go the rest of my life with my sister teasing me about being a shy virgin.”

Abbie brings her face close to yours, looking into your eyes. “If it makes you happy, I’ll never tease you about being shy or a virgin again.” She licks her lips and grins. “And if you like, I have a friend who I could set you up with, so you wouldn’t have to worry about the last half of that, since you wouldn’t be a virgin anymore. I can call her now and see what she’s up to tonight.” She chuckles. “She’s not exactly girlfriend material though — too much of a slut to be with just one guy. I’d be happy to try to help find you someone right for you more long-term, though.” She adds, sounding like she genuinely wants to help you.

You smile at her. “I don’t know if you can help me, Abs. I don’t think many college girls want to date a guy who’s still in high school, who doesn’t even have the balls to talk to them on his own and needs his sister to set him up. I just wish I had a girl who would kiss me like you did this morning and really mean it.”

Abbie leans in and kisses you again like she did this morning, deep and passionate, not at all sisterly. This time you aren’t surprised by her, but you are a bit surprised by your own reaction. You kiss her back hard, your tongue presses into her mouth, probing, exploring. Your hand tangles in her hair. Your cock stiffens and you know she can feel your hard on press up against her buttock.

When you pull back from the kiss, you’re both panting a bit. Her face reddens, she looks down and hesitates before speaking low, “I… mean it… “ she whispers. “I mean, I think you’re great, Dave, like… a perfect guy. I want… would want you for a boyfriend in a second… But… you're my brother, so… I… it’s complicated. Lately, I’ve been thinking… I teased you about being shy and a virgin, to cover up how I really felt… feel. Because I know I’m not supposed to feel this way about you.”

Your sister sounds like she’s torn up, not like she’s teasing you, or trying to trick you to mess with your head. You need to be sure though. “That’s a lot, Abs. I think your great too, but I need a girl who can do things for me that a sister isn’t supposed to. You know?” You stroke your hand up and down her back, and she leans into your touch. “More than anything, I wish I had a girl as sexy as you are here right now, who would strip, get down on her knees, offer her body to me and take my cock deep down her throat. I fantasize about it every night. I even got so **** for it that last night played out casting a spell on a girl I have crush on in school, to make her into a **** who worships me, because I want it so bad.”

Abbie shudders. Her chest rises and falls heavily. Tears well up in her eyes. “You should have that, Dave. You deserve to have everything you want.” She slides off your lap and down to her knees. “If that girl can’t see that… can’t see what she’s missing…” She pulls her top up and off over her head, revealing her round, pert breasts. Your pulse races, but you can’t stop her yet. Abbie was never shy about her body. Based on how she was acting today, she very well might strip in front of you because she thought it would make a point, or just to fuck with your head.

Abbie unbuttons her shorts and pushes them down, lifting one knee, then the other. “If she won’t… I will…” your sister is completely naked, on her knees in front of you. “I know it’s wrong… but if it’s what you need, what you want… I want it too. I want you to take my body, Dave. Use me any way you want.” She crawls closer to you on her knees. Her hands are trembling as they move to unbuckle your belt, then open your jeans.

Up until now, everything she did she could play off as teasing and a prank. You don’t think she would actually touch your cock for that though. That’s almost certainly a line she wouldn’t cross. Her tears are trickling down her cheeks. “I’ve sucked guys that I felt nothing for, barely knew. I don’t think I’ve ever sucked someone I really loved before though… So, is it really so bad if you are my brother? I… “ her voice trails off as her hand slips inside the fly of your boxer shorts. The tips of her fingers find your shaft. You’re convinced she’s under a spell now. You know this is wrong. You know you should stop her.