Same as fuck friend or bonk buddy.

A person you do, cose you aint getting it from someone you love.
Dude, did I tell you that your girl friend and I are such close sex friends ?

It's nothing to worry about, your mum and I are just sex friends.
by DrSnow April 19, 2005
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Adjective

A step above a hookup but below friends with benefits

Normally followed post coitus with a high-five
Female #1 : "Hey, are you and ______ hooking up or friends with benefits?"
Female #2 : " No duh, we are just sex friends."

Example # 2

(Post coitus)
Female : " So... what are we?"
Male : " I think we are just sex friends..."

Female and male high-five
by TheShiveringPuck March 30, 2021
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A couple (if you can even call it a real relationship) who's only real redeeming quality is to fuck each other. These "couples" often soon break up shortly after meeting. The female loses interest as she expects to be brutally fucked every night. These "couples" often tend to ignore family members, do drugs (not always but very common upon the culture), heavy music (loud music that has no fucking value what so ever).

A sex friend usually leaves quickly and is a bad thing to see in a relationship.
Girl 1: "How's Jonah doing?"
Girl 2: "Oh, why do you ask? He's just my little sex friend anyway."
Girl 1: "Oh.."

Jake Paul: "Alissa was just my sex friend. Tessa is better anyway."
by Jamie21699523 August 20, 2017
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