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Author's Note: "Playing With My Sister" is a bisexual series. This chapter contains male-on-male sex scenes. If this bothers you, please go read something else, rather than sending me nasty anonymous emails.
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After we left Don and Jack's, Dad and I were both lost in thought and nearly silent all the way through the remainder of Vermont and Massachusetts. I kept getting boners remembering our all-male hours or from thinking about Angela and Suzie's description of their own wild night. When I glanced over at Dad, I'd see a matching tent in his pants.
"Did you talk to Angela this morning?" Dad asked as we crossed into Connecticut. When I nodded, he continued, "Mary called and told me what happened with Angela, Suzie, Ruth and her. I told her what we did with Don and Jack, too."
"Mary and I saw you gradually bringing Suzie out of her rigid Catholic schoolgirl shell," he continued. "It was the same with Mary and me. You didn't try to push yourself on her, so she relaxed and let her physical nature out. It's hard for a horny teenage boy to hold back, but you had Angela . . ."
"Angela taught me a lot about women, too," I interrupted. "Not just sex, but all the other things . . . Was it like that with you and Aunt Ruth?"
"Did you like the show?" Dad asked, laughing again. "While we were fucking in the store, Ruth and I knew you were watching from the office, but pretended not to notice. We saw your cum on the floor and desk, too!"
"How long have you known Angela, Suzie and I are having sex?" I asked.
"Almost from the beginning," he answered. "When people start fucking, it changes the way they interact with each other . . . and everyone else!"
"I saw the three of you sleeping naked in each other's arms," Dad continued. "It was Saturday morning and I wondered where you and Angela were. You were half awake and looking at me, so I left quickly.
"Mary and I spied on you. We followed Angela to the orgy and hid in the shadows. Angela masturbated while she watched you and Suzie with Bernie and his brother Jeff. After she went inside, we watched through the bedroom window.
"Mary unbuttoned her blouse and pulled it open. She was wearing a push-up bra that left her nipples bare. I unzipped my pants as she bent over and flipped her skirt up. 'Tear my panties!' Mary whispered. I shredded the thin cloth and shoved my stiff cock up her tight wet snatch. She came over and over as I fucked her and played with her tits, finally spraying hot cum into her pussy.
"The party inside was breaking up. Mary adjusted her blouse and skirt, then balanced on my shoulder to remove her torn and cum-stained panties. 'We'll give them something to think about!' she said, dropping them to the ground.
"When Mary and I got home, we were still crazy with lust," Dad concluded. "We scattered clothes and fucked like minks in heat! Knowing you and Angela were watching turned us on even more!" He laughed at my expression. "You're young. It's hard for you to imagine me being your age, but I was." His grin was wicked. "And I've done all the things you're doing now."
I was silent for a long time. "What happens now?" I finally asked. "Was last night a one-time thing?"
"Mary and I are your parents," he answered seriously. "You and Angela are sexually and emotionally mature and over the age of consent, but you still have to follow our rules while you live under our roof."
"Our family relationships changed last night," Dad continued. "We'll take the sex part as far as we all want, and the Menghini family likes to push boundaries!"
My already-hard dick grew even stiffer as I considered the possibilities. One night, Angela asked if she could call me "Dad" while I fucked her. I took her, whispering dirty talk to my "Baby Daughter" and pushing her to a violent set of orgasms before cumming in my "little girl's" pussy.
As I held Angela afterwards, I confessed my own fantasies about our hot 41-year-old mother. "It's okay, Stud!" Angela whispered after kissing me open-mouthed. "We have sexy parents and they turn us on." She giggled softly and kissed me again. "Next time, you can call me 'Mom!'"
"How did you and Aunt Ruth get started?" I asked.
"Ruth slipped into my bed one summer night when I was 18," Dad said. "She was 22 and home from college. Ruth was naked and my cock stiffened in my briefs as she pressed her bare breasts against my chest.
"Ruth took my hand and guided it between her legs. Her soft puffy mound, lightly covered with scratchy hair, was hot and moist. 'Push your finger into me,' she whispered. 'Right there!' I ran my index finger over her complicated folds and was startled when they suddenly opened. 'That's it!' Ruth gasped as my finger slid smoothly into her hot slick tunnel.
"'Play with me!' Ruth commanded. 'Slide your finger in and out . . . Yeah! Like that! Keep doing it! . . . Anything you want!'
"I was gentle at first, but quickly became bold, working my fingers in the hot wet muscular hole between my sister's legs. 'Are you all right?' I asked anxiously when she started moaning and arching her back.
"'I'm cumming!' Ruth gasped. 'Having an orgasm!'
"'Does that hurt?' I asked.
"'No!' she answered. 'It feels wonderful! Keep playing!' Ruth thrashed and moaned as I drove two rough fingers into her pussy. 'Keep going! Harder!' she commanded every time I slowed down.
"'Ruth finally collapsed, gasping for breath, flat on her back with her legs open. She was fondling her breasts and swollen nipples with one hand while holding mine with the other, keeping my fingers inside her.
"It only took Ruth a minute to recover. 'That was great!' she said, pulling me on top of her and kissing me. I was startled when she opened her mouth. I'd never tongue-kissed before! My cock was standing up in my briefs and the fabric was wet and slick with the juice leaking from my tip.
"I removed my shorts when Ruth ordered me onto my back. 'Your cock is so pretty!' she exclaimed.
"Ruth knelt facing my feet and lowered her pubic mound onto my face. 'Stick your tongue out!' she commanded, pulling her folds open to reveal her shiny pink depths. I licked Ruth as she squirmed over my face, moaning from another long orgasm.
"She suddenly gushed juice, splashing my face and filling my mouth with pungent fluid. 'What was that?' I gasped. 'Did you piss on me?'
"Ruth laughed. 'No, I just came so hard I squirted pussy juice. I've never done that before!'
"She bent over and took my erect penis in her mouth, stroking my shaft and sliding her lips over my swollen cock-head, while grinding her open pussy against my mouth. I ate her frantically while the pressure built in my nuts. Ruth was cumming again when my cock suddenly spurted. She gulped frantically as I filled her mouth with hot semen.
"When Ruth turned around and kissed me, I tasted my own cum on her lips and tongue. 'I never realized my little brother is so talented!' she whispered as she rose from the bed. 'I've got to go . . . we sure don't want Mom and Dad catching us . . . but I'll be back tomorrow night!'
"The next night, I couldn't go to sleep at all. I lay awake, naked under the sheet with my prick rock hard, listening as the household sounds died down. Ruth arrived after midnight, naked like before. I rose from the bed and took her in my arms. My hard-on rubbed her belly as we kissed passionately.
"Ruth lay on the bed and pulled me on top of her with my face buried between her big breasts. Her nipples swelled between my lips as I sucked and kissed them while caressing her fleshy tits. 'Harder!' she whispered, moaning orgasmically as I mauled her breasts and bit -- using lips but not teeth -- her long hard nipples.
"'Your cock!' Ruth gasped. 'Put it in now!' When I had trouble finding the secret opening in her folds, she quickly reached down and guided me into position. A fraction of an inch inside her, I met a wall of unyielding flesh. Ruth twisted her pelvis and I suddenly slid into her tight slick depths, all the way to my balls.
"'Fuck me hard!' Ruth commanded. 'Hard and fast!' My virginity ended as I slammed my teenage dick into her muscular snatch. I shot after a few strokes.
"Kneeling between Ruth's thighs with my still-erect penis deep inside her, I played with her breasts in the rough way she liked until she screamed and came.
"After Ruth licked the juices from my cock and I sucked the cream out of her pussy, she said 'You're just 18, so you should be able to shoot again!'
"I fucked Ruth for a long time, fast and slow, lying between her legs with my chest cushioned by her breasts, kissing her and fondling her tits, pushing her to several orgasms before spraying my own hot juice into her.
"That was the first of many nights," Dad concluded. "Ruth taught me a lot that summer and learned from me, too. We've had other partners, but are still lovers. We stopped having sex when Mary and I married, but that changed . . ."
"Angela told me about Mom and Aunt Ruth," I said.
"Yeah!" Dad laughed. "Mary and I had been married for three years when she and Ruth started . . . "
A big pickup lunged into our path. Our big heavy truck lurched as Dad slammed on the brakes and swerved to avoid it. "Jesus! What a moron!" he muttered.
"We're getting into New Haven traffic," Dad said. "The story about Mary and Ruth can wait. Right now, it's your turn. What was your first time with Angela like?"
I told him the whole story, starting with the way Angela and I had been looking at each other for months, each of us realizing how sexy the other had become . . .
By the time I'd finished, we were approaching Stamford, near the New York state line. Our cocks were both straining in our pants. "We're high above traffic in the truck cab," I observed. "Nobody would see me suck you off while you drive."