I let a girl eat out my gf and then she watched us fuck [mff]

Last Sunday was my gf, abbys birthday and she invited some friends over to drink and stuff. Blah blah.
One of abbys friends brought another girl with her, Kelsey, that we’d never met before. 20 minutes into hanging out Kelsey and Abby and me are all hitting it off, with the two of them not so subtly flirting with each other. I should mention that this is not normal for me and Abby and have been strictly monogamous our whole relationship. Anyways, the night goes on and Abby is a little too wasted and goes upstairs to our room to lay down leaving me and Kelsey hanging in the living room. Kelsey keeps telling me things like “you’re gf is amazing” and “she is so awesome” and I can see this lust in her eyes. I start trying to get to what I know she really wants to get to, and just say “I would love to see you two kiss”. Kelsey then asks me if I would let her eat Abby out to which I reply with a definitive “yes!” I then go upstairs to check on Abby and tell her Kelseys request, to which her eyes light up as she shakes her head vigorously “yeeah!” After that I go back downstairs to find Kelsey playing a card game with my brother and his gf. I walk up to the table and probably not so slyly tell Kelsey, “hey, abbys asking for you for some reason.” She responds with “oh, weird, but okay” with a devilish grin. The round was pretty much over anyway, so Kelsey gets up and walks upstairs. I’m pretty sure my bro and his gf new what was up, and me not waiting even one minute to say “I think I should go check on them” probably didn’t help.

For those that like descriptions I’ll say that both my gf and Kelsey are very hot. My gf is about 5’4 115 lbs c cup perky tits, cute round face with big eyes and long blonde hair that she recently died red on the ends. She’s curvy in all the right places for being someone so thin with a round bubble butt that’s fun to squeeze.
Kelsey is very tan with dark hair big eyes, maybe 5’6 with a curvy-athletic ish build and big lips. Back to the story!

I get upstairs to find Kelsey standing over my gf, on the edge of our bed, with Abby on her knees right in front of her. They both barely notice me as i sit down on our chair across from the bed to watch. My gf has her shirt off, only bra on, and her pants are already down. They start heavily making out, wrapping their arms around each other. I’m getting really hard at this point and pull my cock out to start stroking it to no ones objection. Kelsey, still fully clothed, lies my gf down on the bed and gets between her knees, and holy shit she sucked on to my gfs pussy like she was a Kirby vacuum! Mouth completely covering the whole of my gfs pussy while she sucked and flicked her tongue around abbys clit. Abby looked like she was in heaven, moaning and twisting her body around in pleasure, more than I’ve ever seen her before. She is fully enjoying this. I pipe up, “she really likes being fingered” to which Kelsey looks up at me, seeing me hard dick in hand, winks, then sticks two fingers up my gfs slopping wet pussy. This is enough to send her over the edge and she cums so hard, I’m almost positive everyone downstairs heard her moan.
Abby then gets up and tries to reciprocate the favor, tugging at kelseys clothes to try and get her to take them off. It was at this point Kelsey decided to tell us that she has a boyfriend and he’s given her permission to eat a girl out, but nothing else. She looks at us both though and says, “you both are really hot and kinky though” and compliments me on the size of my cock telling Abby it’s about the same size as her bfs but more girthy and “nicer” looking.
My gf then surprises both of us and asks Kelsey, “do you want to watch us fuck?”.
Kelsey responds with “really!? You both would be cool with that!?” to which me and Abby both nod yes as I get off the chair and walk to the bed, taking off the rest of my clothes. I had hopes that Kelsey might get turned on enough to join us, but respected the fact that she has a boyfriend and didn’t try to get her involved.. but involved she got.
I get on top of Abby and we start making out as I immediately shove my cock inside her. We’re moving our hips together smashing ourselves as close together as we could get. Kelsey is sitting on the edge of the bed, holding my gfs hand and just keeps saying things like, “damn that’s hot”.
After a few minutes of this Kelsey asks if she can eat my gf out again. I quickly leapt off Abby to allow Kelsey back in between her legs to lick my gfs now cock tasting pussy. Who am I to argue with a beautiful thing?
This goes on for about maybe ten minutes. Who knows? We’re all so horny and tipsy, time is irrelevant. But as Kelsey is eating out Abby for the second time Abby is holding onto my cock stroking it for me, and disregarding what Kelsey said before, says to Kelsey, “you can touch his dick and give him a blow job too if you want”. To my surprise, Kelsey reaches up, still slurping at my gfs pussy, and starts fondling my balls as Abby is jerking me off. Holy shit it felt good.
Kelsey puts Abby though another orgasm and then almost orders her to get on top of me. Abby obeys like a good girl and straddles my cock, grinding her hips into me. Kelsey sits at the side of us again and her and Abby begin making out as Kelsey reaching underneath abbys ass and grabs ahold of my balls again. I learned later that at the same time she was doing that, she was rubbing her thumb around abbys ass hole, which explains Abby thrashing about on me life never before.
This is feeling amazing to me as well. Kelsey really knows how to please a couple, and I feel ready to burst having my cock rode by my gf while a stranger fondled my balls. She orders us to switch positions, me getting on top again. While I’m hovering over my gf, ready to stick my cock in her, Kelsey grabs my dick, strokes it for about ten seconds, before inserting it into Abby. Her strange hands felt amazing on it.
Kelsey then grabs me by the waste and pushes me into my gf while making out with me. She pulls me away and pushes me back in, wanting to control the way I’m thrusting into my gf. It wasn’t until she started fondling my balls again though that I couldn’t hold in anymore and exploded into Abby.
I pulled out, breathing heavily, lied next to my gf who was also spent. Kelsey rubbed abbys pussy some more, which was by then raw, getting her fingers nice and wet with our juices before licking them clean.
I’m glad I’m not that girl’s boyfriend and I hope he doesn’t find out she was licking another guys cum off her fingers.
Anyways, we got cleaned up and slept there, all three of us for the rest of the night. When me and Abby woke up in the morning Kelsey was gone.
This was undoubtedly the hottest thing that has ever happened to me.

Source: reddit.com/r/gonewildstories/comments/djw7r5/i_let_a_girl_eat_out_my_gf_and_then_she_watched