in my head = tommyinnit x reader

after their mother flew abroad only to not come home, 20yo colby and 16yo y/n are tasked, unexpectedly, to fend for themselves, and on top of themselves, provide and care for their 4yo adoptive sister, hallie.
after moving to a new town, since colby is busy working almost all the time to provide them with enough money to survive, y/n is stuck at home alone 80% of the time, looking after hallie. y/n had started to forget what it was like to live a regular teenager's life, though when a stranger waltzed in out of the fog, new and exciting doors were opened up.