fiendish 

Devilish,spiteful,,frightening,alluring ,

The masked man said in a fiendish manner...
It was a fiendish place to look at...
The girl danced in a fiendish manner...
Grimly Fiendish...The Damned

fiendish by Fiendish Female April 21, 2006

friends with benefits 

A relationship where a man and a woman enjoy having sex with one another, but do not see each other as potential relationship material. Friends with benfits usually never works successfully with ex-boyfriends/girlfriends or anyone else you might have feelings for. The benfits are not exclusive, buyer beware!

Dick enjoyed having sex with Jane, he was young, attractive, and successful. He didn't need any bullshit hassle of a relationship. Jane also liked having sex with Dick, she was also young, attractive, and successful and though she could do the 'friends with benefits' thing unfortunately she developed feelings for Dick, but realized it was futile because Dick was also having sex with X number of other women.
Jane dropped him like a hot potato, and hasn't looked back.

friends with benefits by Sarcastic One December 28, 2005

just good friends 

Term used to describe someone you're sleeping with when you don't want it to get out that you're humping like bunnies.

Screwing Cheryl? That skank? No! We're just good friends.

just good friends by lepeu July 13, 2004

I don't want to ruin our friendship 

Phrase used in polite company. Literal translation is "There's no fricking way I am going to have sex with your fat ugly ass." Used in conjunction with the horrendous phrases "You're a nice guy but..." and "It's not you, it's me."

While I appreciate that you've actually taken a bath for the first time since 1983, I just...don't want to ruin our friendship...

I don't want to ruin our friendship by Paul Wartenberg July 11, 2004

Friendly fire 

An Oxymoron

Murphy's law: Friendly fire--isn't

Friendly fire by Cpt.Bob November 2, 2003

friends with benefits 

where two people can have a sexual relationship with no emotional ties

John and Mary had sex in the hot tub and the both enjoy each others company, but they r just friends with benefits so they can hav as much sex as they want and not be tied down

friends with benefits by urjelous May 29, 2009

forever friends 

Friends that regardless of 50 days of separation, reunite to find nothing has changed.

Nicole Christine Glenn & Bridget Anne O'Connell are forever friends.

forever friends by singinquenn_12 October 16, 2011