Said the 5 year old elder sister about her younger one, 'Mom, who carries a girl in a bus. Isn't the bus supposed to carry us?' Falling for the bait, the little one wanting to appear grown up, slipped into the adjacent seat beside her sister. Grabbing the vacant home on offer instantly, the elder one dived into her mother's lap. Happy Mother's Day BMTC diaries: Mother's Lap Happy Mother's Day