Sister Sally pt 4

I had quickly retreated to my room as Sally continued hoovering her own cock, sucking down every ounce of her cum. Just minutes later, I was in my room, sitting on the bed, when I heard the loud stomps of Sally’s footfalls approaching my door. A loud, heavy fist thumped against my door.

“Let me in, bro!” Sally rasped in her now octaves-deeper voice.

“No, I can’t…” I stammered softly.

Sally laughed. With a loud bang and the sound of wood splintering, the door swung open with enough force to slam into the wall.

A grinning Sally strode into my room. She had put on an XXL cotton top over her massive upper body, and it was stretched nearly to bursting. The tank top had a deep v-neck showing off an inches-deep pectoral groove. Hard-as-diamonds nipples clearly showed through the fabric. The tank was stretched so tight that it barely covered the bottom of her pecs, exposing a stack of apple-sized abdominals and thick, jutting obliques. 

“What, you think a door like that can contain me?” Sally smiled, flexing into a double bicep pose. Huge, football-sized biceps ballooned from her arms, as thick-horseshoe triceps protruded downward. She turned and gazed at her own bicep, smiling at it, then reached out and licked it.

My cock was instantly hard at seeing the massive muscular display. She was my sister, but the sight was so strangely erotic that I could not help my body’s reaction.

Sally chuckled, noticing my stiff hard on. “Don’t be so hard on yourself, bro. Even I get turned on by these thick, sexy muscles!”

For the first time, my eyes traveled downward, noticing the white cotton boy-briefs she wore. They were stretched near to breaking. Her semi-erect cockhead pulsed and grew slowly, pushing the waist band away from her thick abdominal wall. Tufts of coarse dark pubic hair pushed out from where the stretched-to-near-translucent garment clung to her thick member.

Sally grinned. “Not bad for a girl, eh?” 

She grabbed her glutes, flexed them, and bucked her hips. Her girl-cock bulged, tearing through the fabric of her briefs. Instantly erect, it slapped against her thick abdominal wall. I was amazed that she had such a powerful hard on after just cumming only moments ago.

“With all the man-hormones in my system, I’m horny like, all the time now. bro!” Sally chuckled. “It’s awesome!”

She bent forward, gritted her teeth, and crunched down into a most muscular pose. Her pecs bulged and her lats flared. Her tank top tore down the sides and fell from her body, exposing incredibly striated, vein-riddled plates of muscle all over her upper body. 

My chin dropped, eyes wide, as my own hard on nearly tore through my shorts.

Releasing her flex, Sally licked her lips. She reached down and stroked her huge girl-cock. 

“Go ahead,” she said. “Take yours out!”

Why bother fighting this any longer, I thought. This was the most erotic thing I had ever seen! So I reached down and pulled out my cock, stroking it wildly as I ogled Sally’s huge, butched-out physique.

“That’s it, bro!” Sally said smiling. “Jack off to my massive muscles!” 

With one hand slowly stroking her cock, the other felt up her massive pec-shelf and jutting abs.

“Karen!” Sally bellowed, “Get in here!” she said, not breaking eye contact with me as I manically stroked my hard on.

Karen stumbled in, half naked, still in a daze from her multiple-orgasm ordeal just moments earlier.

“I’m still horny,” Sally growled. “Suck my cock, you weak little cunt!” 

Karen, seeing sally’s pumped up, naked musculature, felt energized, her own sex-charged hormones raging in sympathy with Sally’s. She dropped to her knees and stretched her lips over Sally’s huge cock head.

“Ungh, yeah!” Sally grunted, bucking her hips forward, yet still looking me straight in the eyes. “So tight!”

Karen gagged, spit drooling from her lips, but continued to force her mouth deeper on Sally’s cock. She reached out and grabbed her thick, muscular hips, and heaved her head forward, gagging further. Her pussy spasmed juices, driven to horny extremes at the experience of shoving Sally’s huge, thick member down her throat.

“Oh yeah!” Sally grunted, grabbing Karen’s head, and fucking her face in earnest. “Watch me fuck your girlfriend’s face, bro!”

“Oh fuck, so horny!” I said, stroking my dick wildly at watching the erotic sight. 

Sally looked me straight in the eye the entire time, bucking, panting, and groaning as she shoved her cockflesh in and out of Karen’s mouth. Karen made gurgling choking sounds, but continued to squeeze Karen’s hips as tight as she could, slamming her face into Sally’s mighty cockflesh as hard as she could.

“Oh yeah,” Sally yelled, “Gonna fucking CUM!”

Karen shoved her head forward as hard as she could as Sally’s cock started bucking. Sally groaned, still looking me right in the eyes. I looked down at the erotic sight of Sally’s super-cock impaling Karen’s head. I could actually see Sally’s thick swinging balls contract as they pumped spurt after spurt down Karen’s willing throat. My own cock spasmed and I let out a whine. My cock exploded, sending a torrent of cum onto Karen’s back.