"You have to stop thinking I'm weird for having sexual urges around you." I instructed. I wouldn't throw in a wish just yet, not if I didn't need to. That would be my new policy, no wishing unless it was necessary.
"Oh come on, you know that's not what's weird about it." Colleen explained, "Obviously you're gonna want sex with me, I'm fucking sexy. Everyone does. But, you're my brother, that's weird." She seemed soft about it, like she was breaking a hard truth to a child.
"Well, I wish you didn't think it was weird." I phrased the wish as a request, so she wouldn't get suspicious.
"I don't, not at all. But others will." The wish worked perfectly.
"Another secret we'll have to keep." I smirked.
She sighed, not having an argument for that. "Fine, siblings with benefits, and you keep my secret safe?" I nodded, pretending to run a zipper across my lips. "Thank you Joey. Thank you so much." She was heavy with relief. "In that case, I'm taking off this fucking dress. I didn't buy it, that much I know." And she did. Pulling the dress from her sexy frame, slowly the fabric slid up over her curves, almost like a dramatic reveal of her soft skin. Finally she got it over her head and tossed it aside, content to sit on the couch in just her underwear. As she passed me, she put a kiss on my lips.
Today was going well, but I still had my two problems to deal with. I decided to address the more immediate one first. I reached behind Colleen, unclasping her bra. I waited before I released the straps to fall away, I figured I should probably get consent for things like this, even with my wishes in place, I couldn't overstep boundaries. I looked to her expectantly. She nodded, "You might as well." I let go of the straps, removing her bra and exposing her breasts for the second time that day.
I beheld them from behind her, visually exploring their curvature. She sighed, "You're hornier than a dog, aren't you?"
"I kinda figured that was obvious." I admitted. Colleen took a breath, it looked like she was mentally leaping that finally hurdle of resignation.
"Sit here, unzip your pants." She patted the spot next to her. I did so, pulling out my cock. Colleen sucked in. I had seen her naked plenty today, but she had never so much as glimpsed my cock, this was new for her. "And listen, I'm ok with this deal, but I'm not just some slut, this is as far as we ever go. Deal?"
With ease I could have overruled that deal, I could make her do anything I command, but I really needed her to trust me, otherwise she might start asking about the ring again. "Ok, deal." Colleen nodded and began stroking my cock. I closed my eyes, leaning back as her experienced wrist stroked the skin up and down.
"Don't get so comfortable. You put in some work too." She took my hand and rested it on her breast, obediently I began to massage my sister's tit, working the soft flesh with my fingers, gently grazing her nipple. The more I caressed, the faster she stroked my hard member. I understood. She wanted mutual benefits. She would only give if I did. Getting the concept, I slipped my other hand behind the hem of her panties, finding the entrance to my sister's vagina. I slipped my finger inside and I felt her grip on my cock tighten.
I massaged my fingers along the inside of her pussy, and kneaded her breast in my hand, meanwhile she was furiously stroking my cock. One look at her face and I could tell she was enjoying it. Although, so was I.
Faster and faster she stroked, I was bucking into her hand, encouraging the strokes, likewise her hips were bucking into my hand. I was getting closer and closer until finally a shot of cum spurt from the tip of my cock, landing distance on the carpet. I gasped a sigh of relief and continued working my sister, knowing she wanted to finish too.