Best friend’s brother [FM]

Originally posted on r/confessions but I just found this sub and think it will be more fitting.

My best friend who I’m going to call “Mike” has always included me in his family and I was always spending time at this place with them. His parents really like me and I would often spend holidays with them since my own family lives in another ciy. Overall I felt like part of the family so I never thought his siblings were even remotely into me especially not his hot older brother (let’s call him “Pete”)who also happened to be married and I knew his wife because she was obviously always around during family gatherings.

Mike and I went out partying on the weekend like usual(we were 21at the time so it was our hardcore partying stage). Neither Mike nor I ever drove when we parties but Pete had an Uber at the time so it was not unusual for Mike to ask him to pick us up and drive us home. I would almost always stay at Mike’s or get dropped off first but for whatever reason that particular night Pete drove Mike home and offered to drive me home since he was heading out my way to his own house that was some blocks up from mine. Neither Mike nor I of us saw this as suspicious because, again, I was just like another kid sister to them.