Then Eddy was trying to make excuses for his cunt-lapping.

"Uh-I was just treating joy for a sore pussy, Aunt Vi," he blurted out. "Have you ever had your pussy treated like that?"

At first the redhead only blushed. But then she grinned, too. She was getting some swelling in her cunt from what she'd just seen. It finally made her decide to go along with Eddy's dumb line and see what happened.

"No. I never knew there was any such treatment," she said. "Aah, does it work?"

Joy sensed new sex in the air. It relaxed her some. "Try it, Auntie," she suggested. "It keeps your pussy healthy."

"Yeah, Aunt Vi I'll be glad to give your cunt a treatment," Eddy said.

At that remark, the redhead suddenly realized her near nakedness in front of Joy and her brother. Vi clamped her filmy robe together tighter with the hand above her tits.

"I don't have a sore cunt and I'm going to tell on you," she said.

When Vi turned to leave, Joy went into a panic. "Shit! Grab her, Eddy!"

Joy grabbed her aunt's free arm while Eddy caught the one holding the redhead's filmy robe shut. The robe then slipped off Vi's shoulders entirely, exposing a curvy body that made Eddy's eyes pop and Joy's mouth water.

"Now Aunt Vi," Joy said, "we saw daddy treating mom's pussy just like Eddy was treating mine. That's what got us started."

Vi still tried to pull away, but she was being held too firmly. Joy did not want her aunt raising hell in the house, and was glad Vi was staying quiet. The lack of any real commotion encouraged Joy to go another step.

"Let's tie Auntie Vi down for a while, Eddy," she said, helping him push the surprised redhead back on the bed.

In a short fight, Joy tied Vi's wrists to the top corners of the bed, using some scrap cords out of the bedside stand. Vi lost her robe altogether in the struggle. She was now totally naked. Then Joy tied the pretty girl's feet down and far apart, too.