The Plum's New Tail

Eric picked up a plum and bit gently into the sweet morsel. "One of my five a day" he thought. Eric was not the most exciting of people. His mind rarely escaped the dull drudgery of his daily existence. What happened next may well be the most exciting thing that happened all day, all week, all month, all year, or even... all of his life.
Barry was also eating a plum. It just so happened it was the same plum. The purple skin surrounded his middle as he squeezed slowly into the succulent juicy flesh. He slowly munched and wriggled his way through translucent yellow mulch.
Eric nibbled a bit more and paused to look at the small brown solid stone in the middle of the plum. It almost appeared to be moving. He watched  for a moment, then stuck a finger and thumb around the stone and tugged it free with a mild squelch.
Barry looked up at Eric.
Eric looked down at Barry.
"Erm..." started Barry.
"Bleurgh!!!" screamed Eric as he dropped the plum, and Barry, to the floor.
"Oi," shouted Barry, "watch it!"
Eric looked down, his face changing from disgust to astonishment.
Barry glared up at him, but Eric couldn't tell, he just saw a little worm wiggling at him.
"What you looking at?" asked Barry indignantly, "you're the one who ruined my lunch!"
Eric didn't know what to say, he just stared, open mouthed, and retched slightly.
Barry watched Eric, and started to feel slightly guilty. Neither of them had noticed each other, it wasn't really Eric's fault, as much as it wasn't Barry's. Barry decided to try and break the ice.
"Well you appear to have finished your half, I'll finish off mine if that is OK with you?" he inquired.
Eric didn't know quite what to do, he was quite taken aback by everything that had happened. In fact, he felt like he should have a lie down. Unfortunately, his body had already decided this, and he slumped to the floor, fainting from all the excitement.
"How rude," muttered Barry before finishing his lunch.