My friend's girlfriend watched me fuck the girl she set me up with [MF]

A few years ago I was on a double-date of sorts with my friend Brian and his girlfriend Kelsey, as well as her friend Allison who I had only met once but was interested in getting to know better. Allison was a hairdresser, about 5'0" and quite busty. Just my type. Kelsey had told me she was into me after our first meeting so I was excited to see where this night went. I could not have expected what was to come though.

We went to dinner, walked around a local fair that was going on and then headed back to Brian & Kelsey's place to hang out and play some games. As the night progressed it was clear that we were into each other, and after a few hours of games and drinking Brian decides to head upstairs to pass out leaving me alone with Allison and Kelsey. We moved to the couch and put on some Netflix and continued chatting a bit more. I was already sitting next to Allison on the couch when Kelsey decided to join us which placed me in between the two. Figuring I had already sealed the deal and was getting a bit excited I brought up some naughty subjects to enhance the mood, thinking I was giving a clear signal that I was ready to get down with Allison. However, Kelsey was so proud of her matchmaking success that she played along. This led to me discovering that both Kelsey and Allison had hooked up multiple times in the past, and I couldn't help but just blurting out that they should kiss.

They did.

The girls leaned over me and started making out hard right there with me trapped between them, and I was loving every second. I placed my hand on Allison and started feeling her up as they kissed, while she placed hers on my hardening cock. They must have made out for a good 2-3 minutes and when they finally pulled away there was no hiding what I had in my pants. Now, Kelsey was already aware of my size simply from being a part of my close group of friends for a few years, although she had never seen it directly, and as Allison continued feeling me up and staring at my bulge Kelsey says, "I told you he was big."

"I want to see it," Allison says, continuing to stare.

I felt conflicted, since I thought whipping it out with my friend's girlfriend right next to me might be crossing a line (despite her just seconds ago making out with another girl), but goddamn was I horny and couldn't resist the thought of having two beautiful women admire my cock. I explained it didn't feel right doing it in front of her, but we compromised and Kelsey moved over to the loveseat along the other wall. Fine, twist my arm. I pull my pants down and my rock hard cock springs out like a jack-in-the-box.

"Holy shit," Allison exclaimed, "you are a big boy..." Meanwhile Kelsey sat silent and wide-eyed on the loveseat. I guess Allison was just as horny as I was because almost immediately she grabbed ahold of my cock and started sucking. At this point everything else disappeared from my mind other than the feeling of Allison's mouth on my cock and the thought of everything else I'd like to do to her. She gave me head for a few minutes before looking me in the eyes and saying those magical words: "Fuck me."

Allison stood up and took off her pants before turning around and sitting herself down on my cock, and this is when I noticed Kelsey on the other side of the room with her own pants unzipped and touching herself. Allison eased herself down my rock hard shaft. "Oh fuck..." she sighed, but she was already very aroused so it didn't take too long to reach full speed. Given her size I was amazed at how well she took me. I watched her gorgeous ass bouncing on my cock as she moaned "So good..." - and I'm not sure if that was directed at me or Kelsey but shortly after that Kelsey slipped away silently to head upstairs. Allison and I were extremely turned on by the situation and now that we were alone cranked up the intensity once again. We fucked like animals until we passed out, and then once again in the early morning for good measure. During all this we could have sworn we heard the sounds of sex coming from upstairs as well, which only added to the intensity.

In the morning I was mortified to walk into the kitchen to hear Kelsey telling Brian about last night. I was ready to do some serious apologizing but as it turned out there was a lot that I didn't know about Brian and Kelsey's relationship. He was pumped for me if anything. I'm still not sure if Kelsey divulged the masturbating part but regardless it opened up a whole new line of communication between us and it was nice to realize we all had similar mindsets and openness when it came to sex, which is uncommon among our comparatively conservative friend group. We never had a foursome or swapped or anything of that nature, but while Allison and I dated for the next year or so we sure as shit didn't mind getting weird in front of each other, and any time Allison and Kelsey started kissing at a party or something Brian and I would give each other a look knowing it was going to be a good night for us both.