A sugar fuck is the sweeter version to being totally fucked. You say it when your friend does or says something that isn’t in your best interest but isn’t the end of the world.
A sugarlittle is a girl who is both a sugar baby and a DDlg little to the same man (DDlg = Daddy Dom/little girl).
Daisy: I was looking for someone my age to be my daddy dom so we can play video games together and he can buy me a teddy bear. Someone as old as you is like more of a sugar daddy.
Robert: I'd love to go with you to build-a-bear, but I'll also pay your rent and bills and get rid of some of your big girl problems. You would be my sugar little, and I would be both your daddy dom and sugar daddy.