We talked for about fifteen minutes like this, laughing together. Sammi was one of those very tactile people; she was constantly reaching across me to grab Kim's arm when she made a point, her tits brushing against my arm and chest, ensuring my hard-on stayed hard. She knew that every time she did this, I'd look down her cleavage. A few times, we caught each other's eyes and smiled; once or twice, she ostentatiously 'adjusted' her top to ensure that she was showing as much as possible.
She would also put her hand on my thigh as we chatted, occasionally quite high up near my hip. After a while, her hand stayed there and I could feel her fingernails stretching toward my rock-hard cock in my pants.
"Oooh, Kim," Sammi cooed, "Someone's getting all excited."
"Trust you to notice," laughed Kim. "I'll do my best to distract him."
She stood up off her stool, pressed herself up close against my side and kissed my neck seductively once or twice. I could feel the softness of her breast against my arm and her hip joined mine tightly. I circled her slim waist with my arm, drew her closer and toyed with the buttons holding the slit of her skirt together. As I caressed Kim's upper thigh, Sammi and I continued chatting. She was stroking my hard-on skilfully - it was clearly outlined against my thigh through the thin stretchy fabric of my pants.
The club was dark enough that nobody could see what was going on, so I got a little bolder. Spreading my legs wide, I moved Kim so she was standing between my legs, off a little to my left. I could feel the pressure of her butt against my inside thigh; she glanced at me, gave her butt a little wiggle, giggled and said something to Sammi.
My hand was circling her waist and I started to stroke her belly, lower and lower, until I was at the waistband of her skirt, which I began pushing down gradually. She made no objection and swayed gently from side to side, in time with the beat of the dancefloor. To all external appearances, she was just a girl in a very skimpy skirt standing nonchalantly between her boyfriend's legs, enjoying the music with her friend.
Sammi talked on, recounting some of her previous exhibitionistic experiences. All I could do was nod and say, "Uh-uh" and "Mmm," to her stories as I could feel her dextrous fingers at work, slowly unbuttoning my pants. What was probably a minute felt like ten and, finally, my cock was free, sticking straight up. Sammi took a sip of her cool drink, lowered her head and, briefly, rolled her tongue and lips around the head of my cock. Any longer and I would have burst right there on the spot. But I could see she had other ideas.
"Kim," she said to her friend, "lean back. We can't see the dancefloor."
Kim leaned back into me, my cock pressing against her delicious butt. She turned her head to say, "Mmmm, that feels nice" before facing forward again and giving her butt an almost imperceptible wriggle. The slit of her skirt was against her hip and I started to turn it rearwards. Again, there was no objection from Kim - indeed, she sucked her belly in a little to allow her skirt to move freely until the smooth globes of her butt were facing me. With a little shock, it registered that she wore nothing under her skirt.
I felt very self-conscious for a moment, sitting there with this slim girl's soft bare butt pressing into me from the front, her friend leaning her tits and cleavage into me at every opportunity, her hand gripping my cock. The self-consciousness caused my erection to flag a little, but a sudden movement from Kim soon brought it straight back. She leaned forward from the waist, as if to pick something up off the floor. In the moment it took to do this, I saw her pussy lips exposed clearly, wisps of pubic hair moistened and hiding little.
Sammi's hand still held my cock and she angled it forward, so that as Kim stood up straight, the tip of my cock met her butt cheeks. She pushed hard backwards but, as she raised herself up on the balls of her feet even higher than she already was on her strappy sandals, my cock found a place between her legs. Kim pushed her hips gently backwards and forwards, her pussy lips moistening the length of my shaft. My cock is average in size but, right then, it felt a foot long.