Mama loves you more than me!

.My parents were blessed with two children. I was their first-born, followed by my sister three years later. I love my sister to bits but there's a timeless debate we always jump into that never ceases to end...."Mama loves you more than me!" Oh boy!!I'm not sure how it started but my mother always has a field day listening to us, feeling incredibly smug and happy.Why?Because she says she knows