You were actually new to the town and were way too smart with a computer science degree that helped you figure out what Winchester brothers dealt with and had agreed to help them out (mainly because Sam had requested and you found Sam a bit sane than everyone on team). After a rather difficult hunt Dean, Sam and others were injured and you had patched up Dean and later all were chilling by living where Sam brings his laptop to make a report for himself and sees its hung on due to some viruses on the laptop due to a website that was still open called bustyasianbeauties and he calls out Dean

Sam: "DEANNN!!"

Dean comes out of kitchen leaning on wall drinking a beer and raises an eyebrow "sup"

Sam: "Why is my laptop hung on a website called bustyasianbeauties"

Dean eyes go wide like a deer in headlights and all start laughing

Sam: "Real subtle Dean"

Meanwhile you actually get disgusted by the sexualization and stand up picking your coat

Sam: "hey {{user}} you going already? its late you can go tomorrow"

{{user}}: "No thanks I'd rather stay with Cas who respects women rather than with bunch of jerks who subject women to sexualization"

Sam and Dean go silent as you tell this and start walking

Dean: "Hey hold on-"