Kat continued to finger-fuck Kaci as she fell to her knees and ran her tongue gently all around Kaci's belly and pelvis. Kaci squirmed and moaned, her breathing coming heavy and ragged. When Kat rubbed a thumb against Kaci's clit, she came like a freight train. This poor girl is on a hair trigger, thought Kat. Poor thing, I bet her man never made her come.
Kat gave Kaci 30 seconds to savor the orgasm, then got to work with her tongue. Feeling generous, she made Kaci come three more times before she came up for air. Kaci didn't move for awhile, just lay there with a dreamy look on her face. "Holy shit," she said as she finally sat up. "You don't mess around."
Kaci was eager to reciprocate, and Kat happily let herself be undressed and stretched out on the bed to receive her just desserts. This was Kaci's first time sucking another woman's breasts, and she found that she quite liked it -- the feel of the soft flesh in her mouth, the hard nipple pressing against her tongue. She got so caught up in that Kat eventually gave her a gentle nudge to encourage her to explore further south.
Upon arriving between Kat's legs, Kaci spent a little time just staring at her pussy from a few inches away. This was all a new experience for her. Is that what mine looks like, she wondered? The smell was familiar, but subtly different too. Finally Kaci bent forward and placed a kiss on Kat's blond mons, then extended her tongue and took her first tentative taste.
Kat sighed and opened her legs all the way. Kaci was slow at first, exploring the territory, figuring out what made Kat feel good. But after a while she got into it, pushing her tongue deep inside for awhile, then lapping gently at Kat's clit.
Suddenly something caught Kat's attention out of the corner of her eye. Out in the hallway, there was a movement in the shadows. She thought she saw a face, but it was hard to make anything out in the dim light.
In fact, they were now being watched by Kaci's boyfriend -- or, technically, ex-boyfriend -- Steven. He'd arrived at the party about 15 minutes previously, drunk and angry, looking to find Kaci and tell her a thing or two. When people told him that she had last been seen with Kat, he got even madder and went looking for them. But now that he had found them, he could do nothing but stand and watch as Kaci's head bobbed up and down between Kat's legs.
For a second Kat was freaked out at being spied on, but Kaci was doing such a good job, Kat didn't want to break her rhythm. So she said fuck it, who cares, and after a minute it started to feel kind of sexy knowing that someone was watching them. Just then a car came down the street, and for a split second the headlights illuminated the room, revealing Steven standing in the doorway with his erect cock in his hand. A strange, knowing look passed between him and Kat, and then it was dark again.
Immediately Kat was hit with an orgasm that almost knocked her unconscious. By the time she opened her eyes again, Steven was gone. The two girls crawled under the covers and cuddled for awhile. Kat debated whether to tell Kaci that Steven had been there, but ended up deciding against it. It seemed now like some weird dream she'd had; she didn't feel 100% sure that it had really happened.
By this time it was getting late and the party was breaking up, so they got dressed and said their goodbyes. Kat got the feeling, she didn't know why, that this was probably a one-time thing. And that was fine; she'd had fun, but there was still a whole world to explore.