rawlationship
When two people that are not dating wanna make their sexual relationship exclusive, they'll agree to a rawlationship where they'll have unprotected sex with one another but will wear a condom if they have sex with others.
Bro 1 "Are you and Justine dating?"
Bro 2 "No we're just in a rawlationship"
Bro 2 "No we're just in a rawlationship"