A strong pair of hands gripped her waist, pulling her rear up. A pair of fingers danced along her folds, followed by the feeling of Dick's bulbous head. Her lips reflexively parted. She felt his thumb gently rub against her most forbidden hole. Barbara clenched at the thought of having that giant prick in back passage. Perhaps someday.
Barbara's hands were restrained, and her head was forced down into Kori's inviting legs. Barbara went to work, licking the inside of her wet valley, trying to recall every tongue trick that the alien princess had used on her. This was, after all, a princess she was making love to with her tongue. She couldn't be sloppy.
Dick's tip encircled her vagina a few more times before nestling at her entrance. Barbara paused. (This is it,) she thought. Years of flirting and sexual tension, and she was finally going to have him inside of her. It wasn't the way she imagined it, being taken doggy-style, while her head was buried between his girlfriend's thighs. But the moment was ripe. He entered her. She let out of muffled cry as the first inch made its way into her tight and unused tunnel. Slowly, he pushed forward, sinking in deeper an inch at a time, until the entirety of his rod was buried inside of her. Barbara was in shock at how much of him she was able to accommodate. There was only one word to describe how she felt: filled. There was a little pain, but the feeling of pleasure, of satisfaction, that her hungering pussy got exactly what it needed, overcame that.
He pulled out, and suddenly Barbara felt empty and wanting again. She went back to licking Kori, as if to apologize for stopping, and hoping that she'd be rewarded for her efforts. Dick penetrated her again, this time with force, and it was even better. Again and again, he thrusted into her, with more power each time, as her virginal nervousness made way for wanton lust. And each time that wonderful machine entered her, Barbara showed more enthusiasm in pleasing the goddess in front of her. She pushed her tongue deep into Kori's depths, exploring her tight cavern, tasting the cum that was still inside of her. She made sure to direct attention to Kori's clitoris as well. The alien princess's feet hooked behind Barbara's head, and gripped her tightly, indicating a job well done. Despite the thighs closing around either side of her head, Barbara could hear Kori's moans as she continued to tongue-fuck her.
"Yes, Barbara! I have taught you well! Richard, fuck her harder! She's earned it!"
After several minutes of unrelentless pounding, Barbara was the first to come. Her vaginal muscles clenched around Dick's cock, intending to not let go. Barbara screamed in ecstacy into Kori's mound. She licked furiously, not wanting to let her mistress down. Her efforts paid off. Barbara felt it on her face, as the princess came, lustily moaning and squeezing her thighs around Barbara's head. Seconds later, she felt Dick thrust into canal one last time and hold. His warm semen shot deep into her womb. He pulled out, and she clenched her pussy tightly as possible, not wanting a drop of him to spill out.
Barbara crumbled to the bed, exhausted. She had just experienced her third mind-blowing orgasm of the night, and was filled with Dick's seed. And she couldn't care about anything else. She didn't care that she would always be subservient to Kori, or that she hadn't even thought about birth control, or that her own sexuality had been turned on its head. She had been fucked by the sexiest couple in the world, made into their own sex toy, and there was no greater feeling.
Her legs sore and barely functioning, Barbara cuddled up to Kori, laying her head on her buxom chest. Kori wrapped her arms around the satisfied redhead, inserting two fingers into Barbara's dripping slit, soaking them in her bodily fluids. She offered one finger to Barbara, and while the princess sucked on the other. The taste of her own wetness mixed with Dick's semen was quite delightful.
"You performed well, Barbara. I might have to introduce you to our dear friend Donna Troy. She's an Amazon, and is very good with ropes. That would be lovely, wouldn't it, Richard?"
"Of course, I'm always happy to share, especially with Donna."