Counter with girl-on-girl

"I have a better idea," you say. You step back from him and turn slightly so that you can rest your hand on Christina's chest, just above her breasts. You run your hand slowly along her body, following the curve of her breast and her flat stomach until you reach her thigh.

"Oh, fuck yes," Michael says. He sits down to watch the show.

You and Christina share a conspiratorial smile as you move closer. It's not that you're bi--although, you suppose, technicall you are--so much as you're used to using your body to get what you want. This isn't the first time the two of you have made out in front of guys for their amusement, or to drive them crazy, or simply because they couldn't get you off. It's not something you make a habit of--you don't tend to make out when it's just the two of you--but you're familiar enough with Christina that you know what each other likes.

With that in mind, you pull Christina into a tight embrace, pressing your glossy lips against hers. Your tongues exchange greetings as you let loose a slightly theatrical moan for the benefit of the audience. Already, your hands are finding the ties on each others' bikinis and sarongs, and in moments the two of you are nude before Michael. You dance around each other slowly, in no hurry, happy to just show off your bodies to the man in front of you. By this point, Michael has his dick out and is stroking it enthusiastically.

Christina grabs your arms and pushes you back onto a vacant office chair. It groans slightly under the imposition, its wheels squeaking as it moves back a few centimetres until it hits another desk. You spread your legs, drawing them up and towards your body and resting your feet on the arms of the chair so that Christina has maximum access to your slick pussy. You moan when she begins eating you out, your fingers teasing strands of her honey hair. Your other hand finds one of your nipples and starts playing with it automatically.

This continues for another few minutes. Your arousal mounts, and you lose yourself in the pleasure of Christina's skilful tongue, forgetting for a moment that you're putting on a show for someone else. This is all there is: you and Christina, fucking each other's brains out for hours on end, tasting each other's juices and climaxing in unison....

Eventually you signal to Christina with a few careful taps on her head, and the two of you change positions. Christina braces herself against the desk. Facing away from Michael, she proceeds to jiggle her ass up and down. It's not quite as impressive as yours, but Michael is a man, and not that picky, and he seems to be enjoying the show.

You stand next to Christina and spread her ass cheeks apart, exposing her small, pink anus and her thick labia. You run a finger tenderly across the labia, parting them with infinite delicacy so that the finger can penetrate deeper into Christina's pussy. She whimpers while you explore her this way. You thrust your finger deeper into her, then two fingers, then your fist. She gasps, trembling, on the verge of coming. You get a sudden inspiration for how to push her over the edge.

You bend over and spit onto her ass. It lands right on her anus. Removing your hand from her pussy, you use her juices and your saliva to slide some of your fingers into her asshole. Christina's eyes widen, and her lips part even as no sound issues forth. You've never done that before! But even if she wasn't expecting this innovation, she quickly becomes used to the feeling of your fingers up her ass, even thrusting herself slightly off the edge of the desk to make you go a little deeper.

You withdraw your fingers and, gently pushing down on her ass to keep her against the desk, you crouch beneath her so that you're facing Michael and positioned perfectly to touch yourself and eat Christina out. Now at the very edge of her self-control, Christina moans more loudly, bucking her hips and pushing her pussy down against your mouth. You duplicate every bit of control and skill she showed in licking you as your tongue finds the hard nub of her clit. With circular motions slow but ever-increasing in speed, you lick the area immediately around her clit, allowing your tongue to just brush against it, as if by accident.

This teasing doesn't continue for long. Suddenly Christina's moans stop, and you hear a short, sharp inhalation and feel her body tremble above you. You speed up and apply pressure to her clit directly, determined to maximize her pleasure as she orgasms. Finally, she comes down from her high and rolls off you, chest heaving. She slides off the desk and onto the floor next to you, kissing you and rubbing your pussy.

Out of the corner of your eye, you notice that Michael has is about to burst. His cock is seven or eight inches long and impressively thick, coated in slick pre-cum. Any moment now it will twitch and release his load ... and despite your earlier refusal, you admit to yourself that it might be nice to take that hard cock in your mouth briefly. Then again, Christina is pretty determinedly stroking you and sucking on your nipples, and it's likely that if you wait a little longer, you won't have to worry about such thoughts. Or any thoughts.