Before Jeff could really get going, he heard a car pull up in the driveway. He remembered his sister and his mother went to the mall earlier. This gave him an idea that was more cursed than any thought he’d had before, but it was so hot. He looked at Jenny and admired how beautiful she was, but now was not the time for beauty, now was the time for doing what’s hot.
He typed his little sister, Alice’s name on the right, and in both of the emotion boxes, he typed ‘Relationship with Jeff.’ After one final look at Jenny, he pressed swap.
Nothing seems to have changed.
Needing to test his device once again, he walked over to Jenny and leaned in for a kiss, just like he did before for the last test. This time though, Jenny did more than push him off. She slapped him across the face. Her face turned completely red, “Gross Jeff, what’s wrong with you?” Jeff would have been embarrassed, or shocked, or upset over the slap, but instead he was excited that the emotion swap worked.
Jenny, not getting the reaction she expected stormed out of Jeff’s room. She crossed through the living room to go home and passed right by Alice and Jeff’s mom. Jenny never really cared for Alice, but for whatever reason, she felt weird looking at her. Sure, Alice was Jeff’s sister, but at the moment, she felt more like Jeff’s sister. That was why it felt gross when he kissed her. Not only that, she felt like he was a disgusting older brother that she didn’t want to be around, even if his device supposedly worked.
Alice made eye contact with Jenny for only a second and had a strange mix of emotions. She knew Jenny was Jeff’s girlfriend, but right now, she felt like she should be his girlfriend instead. She chalked it down to a weird sense of envy and moved on. But thinking about Jeff had her feeling weird. She felt like she really wanted to cuddle with him, and… maybe a bit more. Alice shook her head, figuring she must be developing a little crush, nothing more.
Jenny left their house. Alice made her way upstairs. Meanwhile Jeff left his room, and snuck down the hall into Alice’s room. He needed to reap the fruits of his labor.
Alice enters and finds her Jeff standing there. She’s loaded with all Jenny’s girlfriend emotions and none of her sister emotions. Which meant all the inhibitions that should stop her were sitting in Jenny’s head. She cheekily walked up to Jeff “Heyyy Jeff, what’re you doing there?”
Jeff’s test went as expected with Jenny, so he figured it should work with Alice too. He doesn’t say a thing and just pulls her in for a French kiss. Alice is taken off guard for a second, she’d never done this with a boy before, but with Jeff it felt so natural. She did her best to give him the same type of kiss, tongue and all, but it was very clear just how amateur she was. Jeff didn’t care though; in fact, he thought it was hot just how inexperienced she was.
He thought about the implications of what he was doing, swapping the relationship he had with his sister and his girlfriend. Some could call him crazy, sure. But none of that mattered to him. Jeff figured he would change things back later, especially if he had the power of mental changes on his side. As long as he didn’t get her pregnant, what’s the worst that could happen?
He pushed Alice down onto her knees, a clear indication of what he wanted next. Just like her kissing, Alice’s blowjob was amateur at best, this was clearly the first she had ever given, but she made up for her lack of experience with enthusiasm. After a few minutes of his cock between his little sister’s lips, he came in her mouth.
Jeff pulled out, his cum dripping out of her mouth, Jenny tried to swallow, but her reflexes got the best of her. She rushed to the door of her room. As she left, she made sure to look both ways up and down the hall before rushing out towards their shared bathroom. The last thing Jeff heard was the toilet flush and the shower turn on.
The way she snuck out made one thing clear to Jeff. Alice may be mentally his girlfriend, but she still knew they were siblings, and their mom probably wouldn’t approve if she knew what they just did. She must be keeping this a secret for now. His phone buzzed, and he checked what happened. He read a text from Alice, ‘We’ll talk about this later.’