“谁跟谁”就是中国人为了显示一种很亲密的关系时用的口头语,表示两个人亲密的就像一个人一样,可以不必见外,算是中国人的一种客套话吧。用“谁跟谁啊”这个短语会给人一种豪爽的、热情的感觉。
"谁跟谁"is the spoken language often used to show a very closed relationship. Usually said when someone want to show that these two people are so close even like one person,then means you can be ease,you two can share every thing. I think its just a courtesy of Chinese. With the phrase "谁跟谁" would give people a forthright, passionate feeling.~\(^o^)/~