【如影随形】〖rú yng suí xíng〗[as the shadow follows the form -- very closely associated with each other; be a person's shadow; be a true reflection of; be on intimate terms with each other]

如花美眷秀恩爱，

影随响答慕缠怀。

随心所欲相感应，

形具神生继开来。

好像影子总是跟着身体一样。比喻两个人关系亲密，常在一起。As if shadow always followed body same. Metaphor two people close, often together. 同：形影不离、亲密无间。反：格格不入。