There was no sensation of smothering for Eunice this time, although her labored breathing might've made it appear that way to a casual observer. The furry warmth of the large dog wasn't the only thing different she noticed about him either. Evidently Buster's testicles were riding high against his body for they bump, bump, bumped against her anus in a delightful tickling manner instead of slapping repeatedly into the cleft of her buttocks the way her husband's loosely hanging gonads used to do. Buster's penis was longer, too. The animal was fucking into her deeper than she'd ever been penetrated during her marital relations. It thrilled the sex-starved widow anew each time she felt the pointed head of his tool jabbing at the hypersensitive mouth of her womb. Because of its shape – man-thick at the base with a head not much larger than the worn eraser of a wooden pencil – the tapering shaft of the thrusting dog dick kept the elastic rim of her cuntal entrance opening and closing around its incessantly stroking shaft. It was like being penetrated for the first time all over again every time he sank that long, slippery spear balls-deep into the moist heat of her submissively fluttering belly.
And it was so hot, too. Much hotter than a man's! The rear half of his driving dong felt as if it was actually searing her little-used sex hole as it probed insistently into her, gliding effortlessly through the elliptical opening of her well-lubricated outer labia only to stretch the tightly gripping ring of her crimson inner labia again and again, the repeated dilation of these rubber-like, ultra-sensitive vaginal flanges sending a constant stream of illicit thrills rippling through her.
The sensual pleasure of being taken in bestial intercourse by her daughter's big horny dog rapidly mushroomed to the point where Eunice thought she was going to pass out from the sheer physical rapture of the obscene fucking she was getting.
"Ohh, ohh, ohh!" she chanted, hugging the Great Dane now, rubbing her cheek against the glossy-smoothness of his hairy neck. "I never dreamed… it would be… th-this good! I'm about to cum! Ohhh! Keep screwing me! Oh, God, yesss! Oouuu! Push me… oovveeerrr!!!"
Neither increasing nor decreasing the speed of his seemingly effortless screwing motions, Buster kept humping it to her. His back arched rhythmically. His rear end shuttled gracefully back and forth at the rate of about two strokes per second, driving the inflamed pole of his turgid penis in and out of the swollen, secretion-slick gap of the woman's pulsating pussy.
"Uunnn, uunnn… oh, shit… he's bringing… me offf!" Eunice moaned gaspingly.
Her toes turned up. She pressed down on the floor with the balls of her feet; elevating her pelvis as the bittersweetness of the preorgasmic tightenings in her loins caused her torso to bow upward and turn rigid with expectation.
Evidently Buster didn't mind the way her change in posture made his dick bend slightly downward inside her, for he continued humping blissfully, his eyes glittering glassily and his slender red tongue hanging out of his mouth.
"Now…nnoowww!!!" Eunice shrilled, her droopy buttocks quivering ecstatically as she fell back limply to the bed. "I'm cumming! Oh, God, Goddd… cumming, cumming, cumming… cccuuummmiiinnnggg!!!"
"That's the girl, Mom!" Becky rasped. It gave her a helluva charge to see her mother behaving this way. "Shit, yes, cum! Have a good cum! You know you're being hosed now, don't you?! Oh, Goddamn, yeahh… let it all hang out!"
"Hhhaaaa-lllaaahhh!!!" Eunice trilled, her body shuddering out of control as the feminine features of her ovoid face contorted into a mask of disbelief at the intensity of the carnal rapture sweeping over her.
Eunice was having a spine-tingling climax this time. It was incredibly good, better than she'd ever dared hope that cumming could be!
"Ooohhhhhh… Oh, Jesus God!" she groaned gutturally; her legs shaking and her head rocking mindlessly from side to side.
Buster was still pumping it to her, his tapering organ sawing happily away within the fluttering folds of her hair-rimmed crack, and the continued stimulation of her twitching sexual parts only heightened the already blissful pleasure of Eunice's toe-curling orgasm.
"Uuuuunnnnnn, uuuuunnnnnnnn. aaahhh-gggaaahhhh!!!" she bleated, a measles-like sex rash breaking out on her chest and upper abdomen.
The velvety walls of her vagina clutched spastically at the turgid column of bone-hard dog dick reaming rhythmically up her to bump repeatedly against the tender cervix of her spasmodically convulsing uterus.
"Ooohhhhh… aaahhhh… oh, Good Lloorrddd… nneee-yyyaaahhh!!!"
She cried out shrilly when her climax reached its mind-numbing peak, then lay there shivering all over, moaning and sighing, sweating, as the state of bliss to which she'd been transported ebbed slowly away, with the Great Dane still plowing his prick into the weakly twitching furrow between her trembling legs.
"Did it feel as good as it sounded?" Becky asked when her mother's eyes finally fluttered open.
"Better!" Eunice sighed. She smiled guiltily. She didn't feel nearly as ashamed of herself as she thought she should.
"Change your mind about my stud hound?"
"Mm-hmmmmm!"
Becky chuckled. "Glad I sicked him on you?"
"I shouldn't admit it," Eunice murmured. "But you'd know I was lying if I denied it, wouldn't you?"
"After the way you flipped out? Yeah, I sure would."
"It's terribly depraved, Becky, letting a dog do it to you!" Eunice whined as a pinprick of conscience stabbed her. "But I can't honestly say that I'm sorry. It was shameful of you to take advantage of my moment of weakness the way you did. I should be furious with you, but I guess you can see that I'm not. Okay, you've proved your point. You got me to try it, and I'll have to admit it was the best, uh, screwing I've ever had. I'm not blaming you; I'm not condemning you. I think I must be crazy, talking like this. But it's over and done with now, and I've, uh, had my jollies, so to speak, so what I want to know now is: how do I turn this damned fucking machine off?"
"Oh, Mom," Becky giggled. "You're a scream and I just love you to pieces now that I know you're human like me. To answer your question, though, I'm afraid that 'fucking machine' doesn't have an off switch."
"Then please pull the beautiful beast off your poor mother."
"Why?" Becky laughed. She was delighted with the apparent change in her mother. "Don't you like his cock?"
"Yes, my wicked daughter, I like his cock very much, and I expect I'll be having more of it from time to time now that you've led me astray. At the moment, however, I'm numb from knees to navel and can scarcely feel it working inside me. I've had quite enough to satisfy me for the time being, but I can tell by the gleam in those lovely eyes of yours that you haven't, so how about trading places with me?"
"Huh?"
It was Eunice's turn to laugh now. "You said he didn't have an off switch. That means he'll just keep hammering away until he shoots off again, doesn't it?"
"Yeah, but…"
"But, nothing, pull him off me! There's no sense in wasting that nice firm erection on a pussy that's too satiated to fully appreciate it, is there?"
Becky grinned lewdly. She was beginning to understand now. "Why, Mother, if I didn't know better," she teased, "I'd think you just wanted to see him fucking it to me again!"
"You see right through me, don't you, you pretty little bitch? If you must know, yes, that is what I want, to see him cramming it into your gorgeous cunt again. How about humoring the old gal who raised you?"