If there’s one book that gets handed around like a rite of passage in non-monogamous circles, it’s The Ethical Slut. First published in 1997 and updated twice since, it’s both a manifesto and a manual. Easton and Hardy don’t just suggest that you can love more than one person—they positively dare you to embrace your inner slut as something honourable, joyous, and ethical.

What It’s About

The book mixes philosophy, storytelling, and practical exercises. At its heart, it’s about reclaiming the word “slut” from its weaponised use and reframing it as someone who embraces sexual abundance without shame. From there, it dives into the practicalities of open relationships: jealousy, communication, boundaries, conflict, and the emotional growth that comes with sharing love (and sex) more widely.

The narrative arc is less about plot and more about themes. Each chapter is like a workshop:

• One section invites you to think differently about love and sex.
• Another offers tools to handle the tricky stuff (like that hot sting of jealousy).
• And others step into the wider implications of living outside monogamy — how to deal with stigma, family, or just logistics.

Strengths

• Affirming and liberating. For people raised on shame and silence around sexuality, The Ethical Slut lands like a revelation. It gives permission where society often withholds it.
• Playful tone. The book is cheeky, warm, and irreverent. It doesn’t feel clinical—it feels like a friend telling you their best secrets over coffee.
• Practical tools. It offers exercises, questions, and scenarios that help you apply the ideas rather than just nod along.

Weaknesses

• Dated in spots. Even with later editions, some language and examples feel rooted in the 90s sex-positive scene. For younger or more politically radical readers, it can feel a little pollyanna-ish or overly libertine.
• Less trauma-informed. Compared to newer works like Polysecure or Undoing Harm, this book doesn’t fully address the ways trauma, privilege, or power dynamics complicate consent and intimacy.
• Accessibility. Its “embrace your slut!” ethos can be liberating for some, but overwhelming for others who are cautious, queer, religious, or just less sexually oriented. It sometimes assumes a high appetite for sexual exploration.

Why It Still Matters

Despite the critiques, The Ethical Slut is the book that cracked open the door for thousands of people. It dared to say out loud: sex isn’t dirty, love isn’t scarce, and you’re not broken if you don’t fit the monogamous script. It’s not the last word on ethical non-monogamy, but it’s the opening chord—the one that makes you want to hear the whole song.

Related reading

These pieces continue the same thread around books and resource reviews.

• Opening Up – Tristan Taormino
• Radical Intimacy – Sophie K Rosa
• The Polyamory Breakup Book – Kathy Labriola