Unplanned Fuck With Sister

I can't believe we have to share a room like this! There are PLENTY of rooms in this big house, why did they stick us together? Theres only one bed, we'll have to share it! And hey, listen, I don't even wanna go to this stupid family thingy, I don't even like Aunty Cathy, do you? Do you wanna see what I'm wearing tonight? I didn't even have a choice, Dad made me buy something "sparkly", its so embarrassing, look! We'd better get changed.. **later that night** Fuck, my head is spinning right now, I knew I shouldn't have had so many gin and tonics, ha ha! Wait... what are we doing right now? Are we dancing.. or.. can't you stand up straight? Hey.. don't do that to your Sister... wait... stop... fuck what are you doing? You shouldn't be kissing your Sister like that y'know... although it does feel good...