TLDR: I sent a video of me cumming to my 'exclusive' ex, but the hand jerking me off was my new fwb, ex then came to it none-the-wiser it wasnt my hand. Sorry it's a bit of a long one.

I (M20 at the time) had been in a long distance relationship (F19 at the time) for about 6 months when it started to go to shit. At about month 8 we broke up. She was under the impression that we were still exclusive... something I had never agreed to... because we'd broken up.

Now the sex with her was good and she had a high sex drive, but she was chubby and not really my body type. It continued for another 3 months after splitting up.

As soon as she'd hopped off my dick (sometimes the same night I'd driven back) an old love interest hopped on. We'll call her C (F20 at the time).

I'm a big boob lover, and C had massive melons. She had always lead me on all through school, college and into my adult life. I'd always gone running back because bedonka bedonkas... So the night she sat in my car, got her tits out and started feeling me up I was pretty flabbergasted.

Me and C had been fwb for about a month now. We'd been out for a drive and things had got hot and steamy. The handprint on the window left by my ex had actually become visible this particular evening. Parked up in the field gate off a lane, I was currently receiving some exquisite head in the back of my car.

The sight of C's topless form followed by her swinging tits nudging my leg as she sucked my dick is etched into my memory. She could do some mad shit with her tongue, felt incredible.

But of course, my physcotic ex had to come along and ruin it. My phone started buzzing. My heart sank and my dick softened as I saw the name. C asked who it was and I told her it was my ex, expecting her to stop.

"Answer it, it'll be funny." And C got back to work.

Dick hard... very hard... horny brain well and truly engaged.

My ex basically wanted to know where I was, but could tell something was different as I was otherwise engaged and could barely string words together.

"What's up?" She asked.

"I'm just... horny." Why the fuck did I reply with that?

"Shame you're driving, there'll be some pictures waiting for you when you get home. I can still tease you though."

"Oh can you now?" Muted, me and C were giggling.

C carried on sucking whilst my ex talked dirty. The whole situation was weirdly hot, more C's reactions were the highlights. Eventually I could tell I was about to bust. I told my ex I was pulling over and would video me cumming.

C was very on board with this, and soon I was leaning on my bonnet with C jerking me off. I opened up a messaging app and we jointly checked out the topless pic my ex had sent me. I replied to her with a video of me jerking off.

I unfortunately have quite small hands, genetics really know how to play hilarious jokes. In this instance, it paid off. The hand in the video I sent was actually C's and it was pretty obvious.

My ex clearly didn't notice as I was swiftly received a video of her playing with herself. She was still on the phone and I could hear her mastubating.

I could feel myself about to cum. The flash of my phone illuminated the ropes of jizz shooting off into the grass. C literally wiped the last few drips of cum off my tip at the end of the video, even more clear it was not my hand. I sent the video as C licked her hand and sucked any remnants off my cock.

I saw the screen record notification come through as my ex made her enjoyment clear. To cut it short, I told me ex someone was coming and I had to go.

Me and C carried on leaning against the car, laughing about what had just happened. It was only when the lights of another car coming along the lane did we realise that she was still topless and my dick was still hanging out.

Later on whilst I was returning the favour for C, I got a video of my ex orgasming. C recorded a video of me eating her out and suggested I send it, but I chickened as I thought that may be a little far(...?).

Me and C laughed about it for the rest of the time we were fucking. I don't know if it is a kink, but hell I enjoy it.