(If you have a problem with the strictly romantic relationship between a fourteen year old and and eighteen year old, this is not the story for you. Also, female reader.)
You knew you really shouldn’t have done it, but you had fallen for your boyfriend’s younger sister regardless. Of course, Matt and you were only ‘dating’ so that your parents wouldn’t get on either of you for being gay. You didn’t think that it would be too hard since the two of you hung out 24/7 anyway, but when you met Katie, you knew it would be.
The young girl was twelve, and you were sixteen when you met, but your heart didn’t care, and Katie acted so much older than her years. She was perfection. Her snark and sass was enough to rival your own and she was way smarter than you were. You had never been one to excessively praise, but you really wanted to raise little Katie on a p