Chapter 4 - feeling each other out

I was totally exhilarated by what had happened but this soon devolved into an intense guilt that I had pushed things too far, and so I laid off the "whiff" games for the next few days. Mandy similarly seemed happy to keep a relative distance but, to my relief, at no point did she behave coldly to me. I wondered if this was because she felt some guilt herself for allowing it and maybe even enjoying it. Gradually, though, we began to engage more, and before long we were teasing each other relentlessly like normal.

But... it wasn't QUITE normal; the teasing now seemed a bit more... flirty. For example, if I walked by behind her while she was doing the dishes for the 45th time in the day, she'd step back and bump me with her butt. Or if she saw me watching her yawn, she'd flash me a smile and finish it off into a cute sexy pose, arms stretched out over her head, chest pushed out, hips thrust out to the side, sultry look and all.

Evidently, being cooped up in a house all summer with a guy extremely interested in "engaging physically" with her was having an effect on Mandy; the same effect I was experiencing from being cooped up with an exceedingly hot blonde who'd effectively allowed me access to her chubbyness.

Eventually the flirty games began again, and now she was actually even initiating. For example, if she butt-bumped me while doing the goddamn dishes, she'd follow it up by looking back and giving me a challenging look, motioning with her eyes to her backside, which was still protruding from the attack. These incidents always happening in ear shot of our parents, I couldn't do anything except indulge in a quick sniff. But I couldn't help to fantasize that, had my parents been out of the house, I'd drop to my knees, yank her shorts off, and begin rimming her bare crack. And good god, the way she'd been behaving, she might even have let me.

Then came movie night, round two. With our parents out for the night, Mandy wanted to sit down, eat pizza and watch The Prestige with me. By 'eat pizza' I meant she ate and I watched her instead of the movie. I didn't care for Hugh Jackman and Christian Bale trading magic tricks, I was more interested in my fat step-sister eating. She was wearing black leggings and her pink tanktop that was too small. It was as if she never replaced her wardrobe after putting on 20 pounds in the past year....thank fucking God for that. After watching her eat about 5 slices by herself I playfully said "Keep eating tubbo, you'll be my kind of size soon." Mandy looked shocked but intrigued.

"How fat do you like your girls? I'm bigger than that whack job you were dating."

I chuckled and told the truth. "I like em huge, but don't know any girls like that."

Mandy gasped "I...I didn't know. I always thought you thought I was unattractive. My last boyfriend was always on me to lose weight. I was always too big for him, he refused to go down on me because I was fat...down there. Nothing I did was good enough."

I rolled my eyes "Wait, you mean Clownweasel?"

"Clownweasel? Is that what you call Ian?"

"Yeah, the guy looked like a weasel and a clown, Clownweasel."

Mandy burst out laughing and her double chin wiggled as her chubby cheeks flushed red"

"Hahahaha I'm never going to look at him the same again."

I scooted over and put my arm around her, my hand placed gently on her lovehandle. God she was chubby...sooooo fucking chubby."

"Honestly Mandy, he had no idea what he was missing."

Mandy "Re....really?"

I went for broke "I mean look at you, you have this cute chubby face, you have a double chin, your blonde hair is gorgeous, your tits are ginormous, your soft arms are flabby as fuck, your belly is almost perfectly round (I gave it a jiggle), your fupa is immaculate, your thighs are thick as hell an don't get me started on your fat ass."

I was bracing for the worst but instead her face flushed red and her hands went over her crotch. She started giggling as an aroma filled the room that I hadn't detected in a while. I knew that smell....she was getting wet. Did I just turn her on by calling her fat? No way, I couldn't have been that lucky. I began rubbing her belly and she leaned back with a pleased look on her face.

"Ian never did that for me."

"Fuck Clownweasel, I'd break him in half in two seconds flat."

My anger had taken over and Mandy sensed it. Immediately she rolled her eyes and I stopped the belly rub. I sat back and watched Michael Caine go on a speech, thinking of what to say next. Then it hit me like a ton of bricks.

"Mandy", I said.

"What?" she said dreamily, eyes glossed over though she pretended to focus on the TV.

I said as casually as possible, "What panties are you wearing?"

She broke from her trance, turned to give me a fake scowl and responded, "None of your business!"

Well I guess she was right about that, so I shrugged and said nothing, acting embarrassed.

Perhaps fearing she'd ended the game, she hastily added, "...but wouldn't you like to know?"

All of a sudden she placed her bare foot right in my lap and began to prod for my cock through my wrestling shorts, finding it in the semi-erect state it'd been in for at least the past hour. Her eyes widened and she smiled as she quickly pulled her foot away. But only for a second. Her eyes then focused on my crotch and she gently placed her sole right back where she had found it and applied firm pressure.

Entranced for a moment, she then glanced up at me, "You sure do like me fat, huh?"

All I could do is smile and watch her sexy foot gently massage my now fully swollen cock. She stroked all the way from base to head, probing to get an idea of its full length. I closed my eyes and sighed in pleasure.

She asked her next question with hesitation.

"What... which... which of my curves... is your favorite?"

I, too, hesitated before answering...

"I, uh, probably your... ass." At this she reddened and glanced away. I continued, "...but uh, I'd have to resample everything to be certain..."

She laughed. "Good one..." she looked away for a few moments, considering... "well... if you must..."

Mandy stretched her arms over her head, leaving her legs slightly parted as if opening herself up for access. Oh, I was going to like this game.

I crawled over her, first bringing my nose to her hair and inhaling. "Mmmmm...smells like... well, Pantene Pro V," at this she laughed.

I then stroked her cheeks softly, they felt full and rounds as she looked at me with passion in her eyes. "Look at these chubby cheeks, I love em." I gently gave both of them a kissed and she stuck out her tongue. I then slid my hands down to her chin and wobbled it. "Careful now, this is one of my faves too."

"You sure are a weirdo, Jared."

As I continued to stroke her cheeks and chin, I slowly slid my hands down to her breasts. Inside I was screaming "HOLY FUCKING SHIT I'M FEELING UP MANDY'S TITS!!" but I could only pretend to be Frederic Fronkensteen "What knockers!" Mandy laughed with the correct response "Oh, zank you docterrrr." When she talked I caught a quick sniff of her breath "Mmmm... pizza."

She laughed again, but only after licking my nose, pushing me away, and smacking me on the shoulder.

I came back at her with a quickstrike lick of my own that landed on the side of her nose. Mandy gave a soft shriek and giggled, lunging back at me with her tongue stuck out. I held my ground and tried to parry her tongue with my own, making contact. She winced and laid her head back down, her giggle gradually subsiding, looking at me, excitedly awaiting my next move.

"Gross... we touched tongues..." she said.

"It wasn't THAT weird," I countered, and moved in as if to demonstrate my case.

I held my tongue out and moved toward her face less aggressively than before. She tentatively stuck out hers, and when our tongues touched this time it was softer; we were no longer fighters but instead explorers, investigating this weird, stimulating, arousing sensation. I licked softly at her tongue and she recoiled a bit and giggled. Then she licked softly at mine and giggled again. I licked back and this time she didn't recoil. We went back and forth several more times with increasing enthusiasm before finally Mandy lifted her open mouth to my open mouth and our tongues melded together. We made out hotly for minutes, sucking on each other's lips, exchanging saliva and staggered breaths. Oh my god did I like kissing my step-sister.

Eventually I pulled away, breathing hard, saying, "I have more things to enjoy." Her face flush, she gave an embarrassed smile and laughed.

I started moving down her gorgeous body, looking up to see that she'd stopped laughing and was giving me a look that was a mixture of concern, eagerness, and anticipation.

I trailed my hands down her thin tank top. It had ridden up from her laughing and now exposed a good six inches of her bare belly. I kissed and carressed it. Taking my index finger and trailing her stretchmarks as she moaned.

"Mandy?"

She looked down at me over her tits "Yeah?"

My cock pulsated and I smiled "You're getting fat, ya know that?"

She nodded as I slid the waistband of her leggings down to expose her belly. Not only that but my hand had brushed against her fupa. I placed my hand at the top of her lips, hoping to have landed on top of her clit but not delusional enough to assume anything with regard to my ability to accurately locate it. I began rubbing it as she began to squirm. I then buried my face in her crotch. She immediately began breathing heavily and put her hand on my head.

I continued my evaluation, now pressing my tongue harder against her clit, she gave a quick laugh and went right back to breathing heavily.

Mandy was running her hand through my hair, encouraging me, but after a few minutes seemed to want even more.