Me [26F] with my BF [29 M] living together, I let him fuck our GF while I was home.

I wasn’t planning on posting this story here, but got some requests, after posting a question about it on another reddit.
We started off on Friday night with our 3 way, and had some crazy sex.. I think we fucked until our pussies could no longer take it..
She spent the night in our bed, and usually most mornings start off with me blowing my BF, but I wanted to try something different. A few weeks ago, middle of the night after our 3 way, my bf and GF were fucking while I was asleep, felt weird and good.. Bed was rocking, but I was too tired..
As far as I could tell, that did not happen this time..
I kissed him and went down stairs, and did tell him I am ok with what ever happens.
About 30 mins later, I can hear some moaning and groaning. It gave me weird feelings. I did this to see how it would affect me.
I just continue doing my work in the kitchen then later surfing on my laptop. The moaning and screaming get little more intense and as that happens, my pussy is wet, with a slight throbbing sensation.. I am more turned on than anything else, until she screams his name telling him to ram his hard dick into her pussy.. That part made me little angry/jealous. I decide I want to take a peek, although I was tempted to join, decided not too.
I peek through the door, and she is riding him and I can hear him moaning about her grinding pussy, and she’s moaning as he’s squeezing and sucking her tits.. They don’t know I am watching. She turns around to reverse cow girl him, and she makes eye contact with me, and starts riding his dick even faster, and takes his hands all over him, and makes him squeeze those tits like crazy.. and he’s screaming/moaning.
She’s looking right at me, and this does cause some jealously..
At this point I decide to go back downstairs, and hear them again, assuming they’re about to finish, because she’s screaming to get fucked by his big and hard dick. and about 3-5 mins later she lets out her final scream.. and screaming about a her pussy dripping wet, and filled up. he is also screaming her name, and that makes me feel weird.. At the same time I am finishing myself up with my fingers.
All is quiet after that for 20 mins, and then they get in the shower, and I am almost 99% sure he fucked her there also, as I heard a few screams..
They finish get dressed and come have breakfast. We don’t really say much just smile. Me and my gf took a selfie.. [Imgur](http://i.imgur.com/QhoTeY0.jpg)

He takes her home after breakfast.. In my mind, I am thinking “she’s going to fuck him one more time” “or maybe at least blow him on the 20 min ride home”
It ended up being the latter..
He came back, and since he was being bad, I spent most of sat showing him and doing things to him.. The sex was crazy awesome..
I enjoyed messing with him most of saturday.. IE.. I made him scream her name, and then told him to stop!
All said and done it was fun..

Source: reddit.com/r/gonewildstories/comments/44sszk/me_26f_with_my_bf_29_m_living_together_i_let_him