The lustful sister-in-law seduced her younger brother who was alone with her when her brother was away on business. With her inherent lustful nature, the older sister at home always dressed revealingly as if inviting her younger brother to fuck her. The younger brother was at the age of fucking and liked to watch, so he couldn't control his cock when he looked at his sister-in-law's body. A wonderful body that he always jerked off every night and wished to touch it once. See more here, brothers