So I am in a FF relationship with my sexy ass girlfriend. About a month ago she made a passing comment about missing the feeling of having a real cock. I didn't really think too much at the time because she's had the same feeling in the past but got over it quickly.

Now I love my girl very much and treat her like a princess when we're in public but like a whore in bed and she loves it. I'm very doting on her and I can't think of a time when she hasn't cum at least once and we fuck probably on average 2 times a day (minus certain times of the month).

Anyway, lately she'd been acting slightly strange and finally I did the thing and looked through her phone. While it doesn't appear that they've physically done anything, she's been sexting heavily with my baby daddy/ex-boyfriend.

Angry, jealous, betrayed, but yet surprisingly turned on, I called up my ex (we've got a fairly good "working relationship") and after talking to him for a bit, it was clear that she had been the one who initiated everything and that he went along with it because he thinks she's totally hot and would love to fuck her.

After thinking about it for a minute I told him let's do it. He's got a really nice cock and I know if given the opportunity, he'll wreck her by fucking her so hard.

I set it up and invited him over. I told him to not take no for an answer if she tried giving one. With the 3 of us sitting on the couch I found a reason to leave by saying I needed something from the corner store and would be back in 5-10 minutes. I knew that was all the time he needed.

Sure enough, when I got back home and came in through the front door, I heard the sounds of her gagging (while deepthroating as I quickly discovered) and him moaning calling her a good little slut. I made my way up the stairs and peeked through the doorway. There she was kneeling on the floor with no shirt on and mouth wrapped around his cock. My ex looked up, saw me there, and with a grin announced that he wanted to taste her pussy. I watched as he picked her up, threw her on the bed (facing away from the door), and practically tore her pants right off of her. He gasped and started at the perfection that is my girlfriend's little cunt and promptly buried his face into her vagina all while he stroked his 8.5" long and 2" thick member. He came up and told her how nice her pussy is and that he's so glad I'm sharing it with him. She asked what very confused. Keep in mind by this time, my hand was fully down my own pants rubbing my wet throbbing clit desperate to see more. He picked her up and flipped her so she was sitting with her back against our headboard but now facing the doorway.

That's when she saw me.

She tried to squim away and quickly started apologizing but my ex was prepared and had her pinned so she couldn't get away and proceeded to bury his face in between her legs again. I walked over to her, kissed her lips deeply, pulled my head away to break from her, stared at her straight in the eyes and slapped her across her whoreish face. She looked at me shocked as she clearly wasn't expecting that. I told her I had no idea that I was dating such a loose slut but that I still love her. I asked her how badly did she want a nice meaty cock inside her cheating little holes and she paused for a minute before whispering that she wanted badly. I kissed her again and told her next time she better come to me more directly and then looked at my ex and told him to fuck her so hard that she won't want another cock for awhile. I then walked out of the room.

So far he's been fucking her for nearly an hour and I know he's cum at least twice. I've lost count with her. All I can hear is the sound of her wet cunt smashing up against my ex's balls with the periodic sounds of one of them climaxing. I've been rubbing and playing with my own pussy downstairs on my couch listening and it's the hottest thing I've ever experienced. I'm going to set it up so he fucks her far more often just so she really does learn her lesson.