noun
friend with benefits; fuck buddy
Colloquial abbreviation of セックスフレンド. Often used in casual conversation, especially among gay men, but also in broader slang contexts. Compare with the even shorter セフレ.
彼とはセクフレの関係で、恋愛感情はない。
He and I are just friends with benefits; there are no romantic feelings.
セクフレを作る前に、お互いのルールを決めたほうがいいよ。
Before getting a fuck buddy, it's better to set some ground rules together.