hi all well I had a craving for something like this.
story idea is that the brother a shy timid young man has a crush on his sister. who the Sister is very interested in her brother. her thoughts are erotic wanting to be his and he hers. though the thought of incest by the brother he thinks is bad but his interest in his sister is still strong. she would tease him, grope him, even letting him see her naked at strange times.
that's the rough idea but would like some feedback on this idea. pm me or post here. :)