NEPTUNE AN OYSTER AND A NYMPH

A Nagging Oyster Nabbed a Naked Nanny by the Nares.
The Nasty Nation was Narcissistic.
The Necklace looked like a Nebula around a Nag's Neck.
A Nearsighted Navigator got Nauseous from the Naval officer's Natural gas.
Neptune Never said Naughty words to Naiads clad in Negligees.
A Night crawler in a Nightgown had a Nightmare that she was eaten by a Nightingale.
The No-good Nihilist was hit on the Noggin and experienced Nirvana.
A Nonpartisan Noodle Nodded Nonstop at a Nervous and Nublile Nymph.