"Come on, Moonpie, time for bed!", smiled Penny.
"Penny, no one calls me Moonpie except my Meemaw", hissed Sheldon and looked at her with his death glare.
"Of course, Moonpie", said Penny with a grin. After all these years, he was still her beloved Moonpie.
"Penny!", warned Sheldon, as they went into the bedroom.
"You try it now for more than fifty years, give up, Moonpie!"
"Absolutely not!"
"What do you mean, Moonpie!" Penny smiled and kissed him gently.
Sheldon returned the kiss and mumbled something unintelligible, which in turn brought Penny smile.
"Good night, Sheldon!"
"Ah, now you can do it!"