セフレ

• Reading: セフレ
• Romaji: sefure
• Kanji breakdown: Abbreviation of セックスフレンド (sex friend). Japanese-English coinage
• Pronunciation: /se.ɸɯ.ɾe/

Meaning

Friends with benefits — a sexual relationship without romantic commitment.

Abbreviation of セックスフレンド (sex friend), セフレ describes a casual sexual relationship where both parties agree there's no romantic attachment. It's commonly discussed in the context of dating apps and modern relationship dynamics. While widely understood, it's considered a crude topic and is only discussed among close friends.

Examples

1. セフレの関係ってどっちかが本気になるから危ないよ。 Friends-with-benefits relationships are risky because one person always catches feelings.
2. あの二人、付き合ってるの？セフレじゃない？ Are those two dating? Or are they just friends with benefits?
3. セフレから本命になるのって難しいよね。 Going from friends with benefits to being the real deal is tough, right?

Usage Guide

Context: close friends, private conversation

Tone: frank, private

Do Say

• セフレの関係は長く続かないと思う。 (I don't think a friends-with-benefits relationship can last.)
• セフレって割り切れる人じゃないと無理でしょ。 (You have to be able to separate feelings to do friends with benefits.)

Don't Say

• 人前で「あの人セフレだよ」は相手の名誉を傷つける (Publicly calling someone your 'sex friend' damages their reputation)

Common Mistakes

• Using セフレ in any setting outside of very close, trusted friends — it's an extremely private topic in Japanese culture

Origin & History

Abbreviation of セックスフレンド (sekkusu furendo, 'sex friend'), itself a Japanese-English coinage. Became widely used in the 2000s with the rise of internet dating culture.

Cultural Context

Era: 2000s, internet dating era

Generation: 20s-30s

Social background: Urban, informal

Regional notes: Understood nationwide but only discussed privately. More openly referenced in anonymous online forums and dating advice content.