If his father had given her the key to the place, then it might have been more than a casual friendship.
And other more shadowy incidents, which now seemed out of proportion to the casual friendship they claimed.
Both father and daughter are ambivalent toward more than a casual friendship with anyone outside their special relationship.
He often envied the casual friendships between the older people in the village, the way they got on with each other.
A casual friendship struck up, say, on an Italian vacation became a suspect foreign contact.
Most also reported interests in developing casual friendships and dating relationships with online partners.
The couple developed a casual friendship, without an inkling of romance.
If it is due to intimacy issues, any form of relationship beyond a casual friendship may be challenging.
The two women had struck up a casual friendship; Garrett wasn't there long enough for more than a few drinks in the bar.
A Pack werewolf with whom he'd cultivated a casual friendship.