She loved sucking Gloria this way, sucking her from the back so that her tongue could drive deep into her cunt-channel while her nose tickled Gloria's sweet little asshole.
It wasn't long before Gloria was moaning.
Amy continued sucking, then suddenly pulled her face away from Gloria's ass. Her nose and cheeks wet with cuntjuice, she looked at Walter.
"Go ahead," she said. "Suck her. Suck your sister!"
Walter blew out his breath in a long whistle. Why not? he thought. She'd sucked him, why not return the favor?
Favor, hell, he was dying to do it!
He took Amy's place on the chair. Having Gloria's ass spread out like this in front of him was a delicious treat. He ran his palms over the smooth white cheeks. Her cunt gaped open, the lips loose and hanging from Amy's sucking. He studied the dark hairs growing around her asshole.
Christ, she turned him on!
Leaning forward, he slowly ran his tongue up the groove between her cunt and asshole.
Gloria moaned. She knew Walter was behind her, and the image of his face there between the cheeks of her ass was almost too much to bear.
"Do her ass," Amy said. "She likes to have her ass done."
Walter was consumed with lust. He ran the flat of his tongue over Gloria's asshole, thoroughly wetting it. Then he curled and stiffened his tongue and drilled the point into the muscular ring of her ass.
Gloria hissed, relaxed her asshole, and suddenly his tongue was inside.
"Oh, sweet Jesus!" Amy said. "That's beautiful!" The sight of her husband squirming his long tongue into his sister's asshole was the most exciting thing she'd ever seen. Her eyes fixed on the tongue-fucking, she moved a hand down to her cunt and began masturbating.
"Somebody put something inside my cunt!" Gloria hissed.
Crooning with delight, Amy gnarled up three fingers under Walter's chin and pushed them into Gloria's steaming cunthole.
The fucking of her asshole and cunt by her brother and sister-in-law drove Gloria wild. She began gurgling and moaning, her eyes rolling up and her throat venting hoarse sounds of lust and pleasure.
I'll never be the same again, she thought. I'll be ruined for any man.
Then she decided that was nonsense. A knowledge of the heights of ecstasy never ruined anyone. She was in her prime, her sexuality fully turned on, and she was enjoying every moment of it!
"Amy, let me suck you!" she cried. "Please, come here and let me suck you!"
Amy's fingers were suddenly gone, and in a moment, Gloria had Amy's cunt under her nose. It was a good cunt, the warm juicy cunt of a hot blooded woman. Gloria buried her face in it and slurped and slobbered at its dripping juices. She had the tickling, squirming tongue of her brother deep in her ass and the steaming hot cunt of his wife filling her mouth.
Already halfway to oblivion, none of the three people on the bed could possibly hear the door open. For a long, drawn-out moment, Andy and Marylou stood there on the threshold with their mouths hanging open and their eyes wide with amazement.
Then they looked at each other. They smiled and shrugged.
Entering the room, they began taking off their clothes…