You decide that as amazing as the ring's power is you don't want to manipulate the girls like that. You'd rather have a connection with them in a more natural way. That doesn't mean that you can't set things up in your favor though.
You get an idea. Sure, it'll take a bit of ring magic, but not too much. You head to Mia's for and make a quick wish before knocking that only Clara would hear you. You can still see through the door and she has just dismounted your cock for the first time in 6 hours (since before she fell asleep snuggling Your cock inside her pussy all night. )
She looks up slightly alarmed so you call out quietly, "Hey, anyone awake?" She smiles at hearing your voice and comes to answer the door. She is just reaching out for the handle when she feels your cum still running down her leg. She grabs a shirt of the floor and dries herself rising it aside.
She cracks the door and gazes out at you looking you up and down. She smiles. "Still rocking that thong! Are we going to have to get you more of those Chip?"
"Well, since you went out of your way to buy me one and get me into it, I just may." She feigns innocence again. "Whatever, you know you just wanted to see all of this."
"It's not the worst sight ever, but why would I ever try to manipulate a situation to get you into a tiny thong for 24 hours?"
"Ummhhm. Hey, is Mia up? I need to ask her about something."
She opens the door just enough to slide her naked form out the door, but to block your view inside. You can't help but look her up and down checking out her amazing body. Her nipples have hardened again while talking to you.
"She's still tuckered out from last night. Is there something that I can do for you?" That mischievous smile is back. And yes, there is lots that she can do for you.
"Uh, so funny thing. I made a copy of my umm, you know. And Mia was going to dispose of it, but it uh, well it still has a use." That was genuinely awkward asking for your cock back. More awkward knowing that it is covered in three girl's cum.
She looks as confused as she can be. "I know what? I know a lot of things. Which thing that I know do you know that I know?"
"I made a copy of... my junk."
"Your penis?" She asks innocently even though she's standing butt ass naked.
"Yes, my penis."
"Why?"
"It's a long story, but I need it back. Mia didn't mention it or anything did she?"
Clara giggles, "She didn't mention anything about giving you your dick back." Clever, she didn't lie but also didn't tell everything that she knows. "Can't you make another?"
"I do have a kit to make one, but it's also not as easy as you might think to make one."
"Oh, let's go and I'll help you with it." She grabs your hand and leads you to your room. She takes you inside and then starts to look around.
"What the hell? What is going on with your walls?"
"Uh, uh, uh, what do you mean?"
Her eyes are locked on the wall depressing you and your sister's room. "What the fuck, why can I see into Mia's room?" She's looking knowingly at you.
"Uh, you can see through the wall?"
"Why can I see through it? What the hell is going on?"
You sit Clara down and after swearing her to secrecy you explain everything that has happened from the lady, to the ring, to the removable cock, and even last night. She actually takes it all pretty well. But she did have one pressing question, "Have you made any wishes to change me or influence me?"
"No. Absolutely not. I've made a promise that I wouldn't do that. Not to you."
She seems happy with that answer, but still slightly skeptical. There is only one thing that you can think to do to convince her. "I wish that Clara could see my past, know my history, and see all that I've done with my wishes and that she is exempted from any wishes that I may make unless they or the results of them are something that she wants."
She blinks several times like she's remembering and you suppose that she actually is. Then she punches you hard. "So you wished for the Camero to be done and that's how you beat me. You're a damned cheater."
You can't help but laugh. She knows and has now seen that you've wished your sister naked, watched her masterbate, witnessed last night's threesome, and planned to fuck her. Yet, she is worried about you cheating on a race. "In all fairness the Camero wasn't finished to beat you, but to finish up the amazing car that she deserves to be."
"And that's the only reason that I forgive you." She glances at the floor for a second before back at you. "Your wish was specific, but broad. I think that I can see all of your past to include your thoughts of me. Have you really been in love with me since you were 8 and I was 9?"
Your not really sure how to answer. You wanted your wish to only really be about the ring and your short past with it. "I don't really know when I started having feelings for you. But yeah, I suppose that I can't really deny them now."
She leans in and kisses you. "I want you to make a wish that you can see all of my past and history as well."