Fluff

A type of story in which a fan can never read with a straight face/can turn someone into a puddle. Unfortunately for curious people, science cannot answer why fluffy stories cannot be read with a straight face while an explicit one with the most disturbing themes can. (Seriously, you can't (read stories with fluff without smiling). I've had LOTS of experience with this.)

Some stories have so much fluff you feel as if not one minute of you reading goes by without smiling.