儿子替姐姐发的愁

晚上睡前给儿子讲完故事，告诉小人该睡觉了，儿子发问了：“妈妈，你多会儿能在生个小弟弟呀？”我答：“妈妈再不生了，妈妈生不动了。”儿子不急不恼， 认真地说：“可是妈妈，when i grow up, Yaya will have no baby brother to play with her, she will be sad......"