My girlfriend and her best friend like to plan trips together, and they decided to make their most recent excursion for couples.

The girls planned a week-end getaway to Las Vegas, and Matt and I were happy to go along.

Annie booked a two-bedroom suite, with Matt and Nikki in the other room, wanting to make the trip as luxurious as possible. Even our plane tickets were first-class. The girls had gone all-out for this trip — and that wasn’t all they had planned for us.

During dinner the first night, my girlfriend whispered to me, “Don’t you think Nikki looks good tonight?” I agreed that she did, but told Annie that she looked better. My girlfriend giggled and thanked me, then said, “She looks good enough to eat, I think. Do you want to do that? Eat Nikki? Maybe kiss her, touch her — fuck her?”

Truth be told, I’d thought about banging Nikki more than a few times, and it sounded like Annie actually wanted me to sleep with Nikki — which made me wonder if she wanted to fuck Matt. So I asked her.

“Nikki and I have been talking,” she replied, “and we think it might be fun to try something new. We thought this would be a good time to do it.”

“Do what?” I asked, my curiosity piqued even more.

“Swap partners,” she said, as if it was obvious. “It sounds fun. Will you try it?”

I was surprised, but I shouldn’t have been. Annie’s always been a bit wilder than me, and she is constantly after me to try new things in the bedroom. I usually give in to what she wants, and this time was no different.

Across the table from us, it seemed as if Nikki and Matt were having a similar conversation. No one said anything definite, but it was clear that we were going to trade dates when we got back to our rooms.

The flirtation started at the table, but it was nothing intense or over-the-top. Nikki slid her chair closer to me, and Annie slid closer to Matt. Then Nikki’s hand went under the table and came to rest on my thigh. She rubbed her hand up and down, then squeezed my leg, but that was all. It was simple yet sexy, and it definitely got my blood pumping, but nothing else happened until we were back in our suite.

As soon as the four of us walked in, things heated up. Annie made the first move, pulling Matt in to kiss him, her chest pressing against his as their lips met. Nikki and I watched them for a moment. I was impressed by my girlfriend’s boldness, and excited by seeing her kiss someone else. It was something I’d never expected to witness, and even though I thought I should be jealous, I was nothing but aroused. It was one of the hottest things I’d ever seen.

Watching Matt and my girlfriend gave me the push I needed to make a move on Nikki. She was standing next to me, so I grabbed her around the waist, pulling her to me and kissing her soundly, the same way Annie was kissing Matt. Nikki returned the kiss immediately, her lips and tongue dueling with mine for control, and then she just took over. She ripped at my clothes, undressing me until I was wearing nothing but my boxer briefs. She was still fully clothed, though, so I hurried to reciprocate. I unzipped her dress, and the short, strapless garment fell to the floor, leaving her in nothing but a tiny thong. She looked even hotter than I’d imagined.

Nikki let me admire her for only a second before she was on me again, this time pulling my underwear down past my erection and getting on the floor in front of me. She took the head of my shaft between her lips and sucked. The way she moved her lips and tongue around my dick felt amazing, and I thrust my hips, pushing my cock further into her mouth. As I fucked Nikki’s mouth, I watched Matt go down on my girlfriend across the room. He was going at her pussy like it was the last one he’d ever get to eat, and Annie was going wild. She was moaning and screaming from the sheer amount of pleasure she was experiencing.

Seeing my girlfriend so aroused was a huge turn-on, and I thrust harder into Nikki’s throat. She was a talented cocksucker, and she was able to deep-throat me without any trouble. She made taking a seven-inch dick down her throat seem easy, and as she swallowed around me several times — a move that made my already-hard cock even harder — she kept swirling her tongue around the shaft. It was almost enough to make me come, but I managed to hold out — mostly by closing my eyes and ignoring the sounds of pleasure coming from across the room.

Nikki dropped my cock from her mouth and stood up again, kissing me hard and rubbing herself against me. I had to fuck her as soon as possible. I picked her up and she wrapped her legs around my waist, her wet pussy less than an inch from my hard dick. I took a few steps over to the couch and leaned over so Nikki’s back was on it, then I pushed my cock into her.

She moaned loudly as I filled her, and then she thrust against me. I let her writhe for a minute before I began to move. I held her in place as I slowly and gently stroked in and out of her pussy. She was tight and wet, and the more I thrust, the more aroused I became. I started to pump harder, going as deep into her as I could.

I was really getting into the fucking, and I slammed my hips harder against Nikki’s. She let out a low, pleasured moan, but I heard another noise, too. I turned my head and looked over at Annie. She was getting nailed doggie-style, her favorite position, and it was clear she was enjoying it. Her head was hanging down while Matt plowed into her from behind, but each time he reached around to play with her clit or hit just the right spot with his dick, she threw her head back and cried out in ecstasy. I had no doubt she was going to climax soon, and I wanted to get Nikki off by the time Matt made my girlfriend come.

I fucked Nikki even harder. She was panting and gasping and moaning the whole time, but when I felt her cunt start to spasm around my dick, I knew she was almost there. I continued thrusting into her, grinding my hips against hers with each stroke. Once I’d built up a rhythm that allowed me to easily go from thrusting to grinding to thrusting again, it didn’t take long to get Nikki off.

As I felt Nikki’s cunt grip and release my dick, I glanced over to get one more look at my girlfriend. She’d climaxed while I was focused on Nikki, but when I looked over, she was still on her hands and knees on the floor, with fresh come dripping out of her pussy. It was the single hottest thing I’d ever seen, and it set me off, making me come as I thrust into Nikki’s cunt.

After we finished, Nikki’s legs dropped from my waist and I leaned into her. We rested for a few moments, panting almost in sync with Annie and Matt, and then we went at it again. My girlfriend definitely planned a great get-away, and I can’t wait to see what’s next!