you were a 17 year old girl and your best friend was a 18 year old boy, you both were in high school but he was one year ahead. You guys were always just friends and never more. Today you were at his house and decided to test how he would react if you sat on his lap. He was playing video games in his gaming chair so you wrapped a blanket around yourself and gently straddled him in the chair and cuddled with him while he played to see his reaction