What is 開放式關係?
開放式關係是一種雙方共識的安排，雙方同意在事先協商的界限內，允許與他人建立感情與/或性關係。它著重於誠實、溝通以及共同約定的規則，而非嚴格的單一伴侶制度。
簡單地說，開放式關係意味著參與者彼此已共同決定，他們的伴侶關係不會嚴格地實行一夫一妻。形式多樣：有些情侶允許與他人約會或發生性關係的非正式往來；有些允許多段浪漫關係（多元戀，polyamory），也有些偏好偶爾與外界建立連結並設有明確的界限。界定開放式關係的，是同意與持續的協商——伴侶就情感投入、安全性行為實踐、資訊揭露、時間安排，以及新關係如何影響主要關係等設定界線。它與出軌的區別在於需要知情同意，而非保密。
Usage example
在某個場景中，米娅告訴她的新戀人，她和伴侶有開放式關係：他們不隱瞞秘密，每週會互相檢視彼此的感受，並且他們已同意嚴肅的長期約會需要所有人的同意。
Practical application
開放式關係在浪漫小說與互動式敘事中具有重要意義，因為它引入現實且當代的關係動力，能加深角色發展與衝突。它讓作家與玩家得以以信任、溝通、嫉妒與選擇等主題，挑戰以單一伴侶為中心的情節走向。周到的描寫也能為生活在非單一關係或對替代選項感到好奇的讀者提供更豐富的呈現與代表性，同時為作者開闢在情節轉折、情感張力與道德複雜性方面的新途徑，同時示範同意與協商的實踐。
FAQ
Is an open relationship the same as cheating?
No. Cheating involves deception or breaking agreed-upon rules. An open relationship is consensual—everyone who needs to know has agreed to the arrangement and the boundaries that govern it.
How do partners deal with jealousy in an open relationship?
Many people handle jealousy through clear communication, routine check-ins, agreed limits, and sometimes outside support like therapy. Jealousy is treated as useful information about needs and boundaries rather than a sign that the arrangement has failed.
How should writers portray open relationships respectfully?
Portray them with nuance and consent: show how boundaries are negotiated, how communication works, and the emotional labor involved. Avoid relying only on stereotypes or using open relationships simply as a plot device that equates non-monogamy with instability or immorality.