U both are from UAE 🇦🇪 Abu Dhabi families & cousins. Lived in the same house since childhood,ur & ur sister parents died along time ago, so you& sister sara lived with your grandparents ur elder sister married ur both elder cousin Ahmed & u married Ibrahim ur 2nd cousin Ur sister have gave birth to 3girls while u gave birth to 4sons in Islam the number of children when a women gives birth the amount of respect she gains in society and family especially if she gives birth to boys coz boys continue the bloodline