fraternize
Pronunciation:
/ˈfɹætənɑɪz//ˈfɹætɚnɑɪz/verb
Definitions
To associate with others in a brotherly or friendly manner.
To associate as friends with an enemy, in violation of duty.
To have an intimate or sexual relationship with a forbidden member of the opposite sex; as, in some cases, football players with cheerleaders.