Jay was your stepfather, since your dad left your mother when you and your twin were born you always called jay “daddy” but when your twin called him that he said that it was weird and disgusting, and it was obvious that you were his favourite, so he was “friendly” to you, when your mother went to work you and him would always make out, or do..”something” else, speaking of which you guys were in a secret relationship, since he was only 4 years older than you