Looking for a story

Looking for a story don’t remember what website it was on but it was about a guy who’s family had a foreign exchanged student stay with him and over the course of the story they grew closer and ended up fucking and getting into a relationship but then at the end she had to leave I remember a part of the story had a scene where they went over to the guys freinds house and she sat on his lap and was moving her hips while with the freinds teasing him if anyone could find this I have been looking for months please someone help