It was pleasant to have Nicole's delicate fist wrapped around the base of his cock, but it was heaven when her sister wrapped her hand around the head.
"See, Tawny? Good head always comes with a hand job."
Markus lay back as they squeezed and started jacking him off together, the purplish tip of his shaft emerging between Tawny's forefinger and thumb, throbbing with their every tug. He didn't know what he was getting into when this started, didn't really know how he'd gotten here in the first place, but was damn glad he was where he was, sitting on the couch at his girlfriend's with his pants around his ankles and two gorgeous sisters stroking his erection, an erection so hard it hurt.
He was oblivious as to the plan when Nicole had told him Tawny would be staying with them for the weekend while the dorms at her university were closed for cleaning. Tawny did stay the weekend occasionally to do laundry or get help with homework from the two of them, both teachers.
When he'd caught on that there was something going on was when Tawny walked in the front door looking gorgeous. Markus had been with Nicole long enough that Tawny was used to seeing him around and didn't bother to look her best in his presence anymore, casually tossing on sweats and a headband to come over, but this evening she'd walked in wearing a cute little black skirt that left a lot of tan, athletic thigh exposed (Tawny was on the volleyball team despite being a few inches under six foot) and a tight white tee that accentuated breasts that had grown during her freshman year and a hint of dark tummy showing below the hem. She took her sunglasses off of her pert nose as she kicked the door shut with a bare foot, exposing impossibly pale blue eyes and round cheeks as tan as her stomach and legs.
Nicole came around the corner from the hallway to see who it was, and despite Tawny's attractiveness it was clear Markus had picked the prettier sister. Nicole had cute, youthful features and a dash of freckles across her nose and cheeks that coupled with a wide, luscious smile to make her look younger than her sister despite being in her early twenties. Nicole laughed at Tawny and swept over to give her a hug, holding her younger sister against her ample breasts, and Markus took the opportunity to peek at Nicole's ass, full and round and tucked into a flattering pair of jeans. Where Tawny was coltish and toned, Nicole was curvaceous and womanly.
"All dressed up for me, Tawny?" Markus teased, crossing his arms and leaning back in the recliner where he'd been reading.
"Uh-huh. Just for you," she mocked. "Like my hair?" She shook her blonde tresses, more of them than last time he'd seen her. "It's almost as long as yours!"
Markus laughed, running his hand through his own shoulder-length mane.
The evening was mostly routine for the trio, Tawny and Nicole talking about family things while Markus grilled steaks on the porch. Nicole opened a couple of bottles of Cabernet to drink with dinner. But there was a palpable tension in the night's conversations. By the time the sun had set, the dishwasher was quietly sloshing and Markus was pouring the last dregs of the second bottle into their glasses. Whatever anxiety there had been had thoroughly evaporated and they'd laughed themselves to tears more than once.
Markus admired Nicole's slightly tipsy smile in the soft lamplight and then turned to look as Tawny got up from the recliner to look for something in her duffel bag. When she bent over at the waist, her skirt rode up high in the back, exposing the bottom arc of her ass and a thin bit of pink fabric between her cheeks.
"Uh, Tawny? I think you're showing us a little more than you want to." Markus blurted out, immediately regretting the tease; he should've just admired the view.
Fortunately, Tawny just giggled and wiggled her ass, the skirt swishing around her hips and exposing even more backside while she dug in her bag. Markus thought he felt his penis stirring and then suddenly realized it was Nicole's hand on his lap, rubbing across the crotch of his shorts. He turned to look at her to find her smiling mischievously at him. She nodded back to her sister, and Markus turned in time to see Tawny straighten up and reach back with a hand to pull the thong out of her crack as she turned around. His gaze shot up reflexively to her face, but Tawny was looking at Nicole's hand rubbing in his lap. She looked up at his face and blushed a little and opened her pink lips a bit as if to say something, but remained silent. The tension had returned.
Markus knew he should stop Nicole, but his dick was quickly growing and it felt wonderful. His gaze roamed over her sister's body.
"Markus?" Nicole said, and he turned to look at her. She was still smiling seductively.
"Yeah?"
"Tawny needs your help with something."
Markus blinked dumbly. Between the wine and his sudden arousal, he couldn't catch up with what was going on. "Like, for school?"
"No, this is different," she said, moving her hand to his belt and starting to loosen the buckle. "Tawny, why don't you come sit down by us on the couch." It was clearly not a question, and after a brief hesitation Markus felt her presence on the other side of him and turned to look. She was staring rapt at Nicole's hand unzipping his pants and undoing the buttons, and the way she had sat down left her thighs parted and Markus could clearly see where those thin pink panties covered her young pussy.
