"So big… so big…" she repeated in a sing song litany. "So big… big… big…"
Kathy smiled, thinking how much Margaret had changed in the past few days. How much they had all changed!
She got up and straddled her brother's face and he went to work on her cunt. She faced Margaret, fondling her tits as the girl rose and fell. Then they leaned over and French kissed, only the bottom half of Margaret's body moving now, but moving quickly.
The bed rocked and shook.
Suddenly there were voices downstairs.
"Oh, Christ!" Kathy hissed. "They're home!"
They quickly untangled themselves and started to dress.
"I thought you said they were seeing a movie," Tommy said, hopping on one foot as he pulled on his briefs.
"That's what they said! They must have changed their minds."
"God, if they ever catch us together like this…" Margaret said, adjusting her bikini bra.
Kathy took several deep breaths to calm herself, straightened her hair, then went downstairs.
"Let's wait up here," Tommy said to Margaret.
Kathy returned a few minutes later. "It's okay. They arrived at the movie theatre after the movie started, so they decided to catch it some other time. They're back at work now. I told them we were all going out for a swim. They didn't suspect a thing."
Tommy breathed a sigh of relief. "Okay, let's go back to the lagoon."
They dashed out of the house and into the brilliant sunshine.
"God, I can hardly walk, let alone run!" Tommy said, grimacing.
The two girls laughed. "If you don't hurry," Kathy said, "We're going to leave you behind!"
"I'm hurrying! I'm hurrying!"
CHAPTER EIGHT
"Where have you been?" Edna asked the teen. "It seems like ages since we last balled!"
Tommy smiled sheepishly. "I've been kinda busy…"
"With Margaret, I bet." Tommy's eyebrows went up. "Huh?"
"I've seen you two going to the lagoon."
"Thought you could fool me, eh?" she smiled. "Well, no, I mean, uh…"
Edna couldn't help laughing. She put her arms around the teen. "It's all right. I understand. Share and share alike. How's your beautiful sister been?"
"Fine."
"I bet she's out with Margaret now."
"You win the bet."
"Ha. I thought so."
"I've missed you," Tommy said, pressing his cheek against the woman's breasts.
"I've missed you too. It gets lonely here without you."
"You're not angry at me? For making it with Margaret, I mean."
"No more than I am about you balling Kathy. Why should I be?"
"I thought maybe you'd be jealous or something."
"No, I'm glad to see you with girls, even if one of them is your own sister!"
"Balling you is still the best."
"Well, let's find out if that's still the case."
They walked into Edna's room. "I thought we'd try something a little different today."
"Oh, yeah?" the teen said eagerly. "What?"
"To put it crudely, butt fucking."
"Huh?"
"I want you to fuck me up the ass." Tommy made a face. "The ass?"
"You've slipped your finger up my ass, why not your cock?"
"Won't it hurt? Will I even fit?"
"I think so," Edna smiled. "We'll just be a little careful the first time."
"I wouldn't want to hurt you, Edna. You know that."
"Of course, sweetheart. Don't worry. I've done this before."
"Does it feel as good as… regular fucking?"
"If you think my cunt is tight, wait until you try my ass!"
"No, I meant you."
"Oh, sure. You'll see."
She started to undress the teen. His cock was thoroughly erect, and Tommy had to admit to himself that the idea of fucking Edna's ass excited and aroused him. He could feel his prick pulsating with desire.
With trembling fingers, he took off Edna's blouse and shorts and panties, which were moist with her cunt juices. They lay down on the bed and he noticed the small jar of Vaseline jelly on the night table beside her bed.
He caressed her buttocks, pressing his middle finger against her puckered anus and she moaned softly.
"Let's do it, now!" he said, voice hoarse with emotion. "What'll I do first?"
"Well," Edna said, reaching for the jar of Vaseline and opening it, "You first smear some Vaseline on your middle finger, then insert it up my ass to lubricate it. It doesn't get as naturally wet as my cunt, you see."
He did as she instructed. She turned over on her stomach, heart beating quickly.
Tommy inserted his finger all the way up her tight rectum, turning his finger to and fro to fully lubricate her ass passage. He could hardly wait to ram his dick into her.
He pulled his gooey finger out and asked, "Now what?"
"Now smear the Vaseline all over your cock shaft, then fuck me just like you would my cunt. Only take it easy. Your cock never looked so big and thick before. You must be excited!"
"I am," he gasped. "I never would have thought of this myself."
"I told you I was going to teach you everything…"
"What's left!"
"One step at a time… I'm full of surprises…"
Chuckling, he rubbed Vaseline all over his torrid member. It felt good. He wondered what it would be like jerking off like this. He decided he'd have to try it sometimes.
He took the towel which Edna had earlier placed alongside the Vaseline, and wiped his fingers. He looked down at her ass crevice, then at his Vaseline-covered dick.
Bending over her, he pried apart her buttocks and she spread her legs as far apart as she could. Her wrinkled red opening seemed to wink at him. He guided his dick by hand, pressing his domed cock head between her cheeks.
Edna held her breath and forced herself to relax completely. Her rectal opening responded by widening enough to allow him access to her musky depths. He felt his prick head slip into her tight rectal folds. A smile appeared on his face.
"You were right," he gasped. "This feels good already!"
"Give it to me," she groaned. "Every thick inch of your delicious cock!"
She reached around herself, pulling her ass cheeks apart with both hands, keeping her legs splayed wide apart. Her erect nipples rubbed against the sheets, making her chest tingle.
"Ohhh, yes," she sighed. "It feels so wonderfully thick… ahhh…"
Slowly and with great care, the teen slipped his shaft inch by inch into the woman's tight passage. She was well lubricated and Tommy had less trouble going into her than he thought he would.
God, she is tight! he thought, his loins sparking to life. "I didn't think anything could be tighter than your pussy," he whispered. "But I was wrong!"
She reared her ass up, the pressure increasing rapidly as more and more of his dong entered her. He felt incredibly big inside her. She breathed heavily, hoping he would fit into her to the hilt.
He looked down and watched his thick pulsating cock shaft slip deeper and deeper into Edna's tight, wet, slippery asshole. The sensation was incredible, unlike anything he had ever experienced before.
With one final shove that made Edna cry out in pain and pleasure, he was completely embedded in her shit passage, his balls hanging below the gentle curve of her buttocks.
Tommy bent over her, his chest against her back, and reached down to fondle her tits. She rose on her knees, his palms cupping under her tit mounds, his fingertips digging into her mounds. Then he started moving back and forth, getting the feel of her shit channel, gooey and hot.
"Does it hun?" he asked.
"Only at first. Only a little now. But I can feel my ass widening… stretching for your beautifully thick hard cock. It feels good now… slowly start fucking me… I want to feel every thick inch of your prick… do it to me, baby, do it!" Tommy was more than happy to do as the woman asked. He could tell by the look on her face and the tightness of her voice that she was turned on. To further enhance her burgeoning pleasure, he reached around to slip two fingers into her hairy fuck box. Soon the sensations in her cunt grew and merged with those developing in her asshole, creating one magnificent sensation that soon had Edna writhing underneath the teen.