Please note that this story is fiction and consensual sex is important.

I like stag sex (related to cuckolding). Since a few weeks I have a new couple as a bull with whom I have fun. Our sex is purely virtual. The "vixen/fox" has gotten permission from his stag for me to have fun with him.

The fox and I had another session and did sexting together. And this story came about:

On the train. Today was a three-hour train journey. Luckily for me, a cute guy has taken a seat opposite me, who I've been eyeing secretly for a while. In the reflection on the window, I can see that he's busy chatting on grindr.

As he puts his phone aside, I continue to watch him shyly in the window reflection. I notice that he keeps glancing at me and looking me up and down. He accidentally kicks me with his foot. "Sorry." We chat for quite some time and he seems like a nice guy. We start teasing each other back and forth. Light flirting. A fleeting touch on the leg. I think he’s hot. And he knows it. He provocatively shows me the bulge in his pants. "I'm pretty uncomplicated and you can see my offer here. I'm going to go to the loo now and see what happens."

I follow him. I don't care if someone sees us disappearing into the toilet together. He locks the door.

We can't keep our hands off each other. Gentle kisses quickly turn into greedy touches. He undresses me. I can only just manage to open his shirt. When I try to get to his pants, he makes me kneel. He unbuttons his pants and his hard cock pops out. He starts jerking off. My gaze is fixed on his crotch. He lets me watch him stroking his dick. With a soft moan, suddenly he cums. The grindr activities have clearly turned him on. His cum hits my face in big drops.

I couldn't even open my mouth in time, so I swipe a little of his juice into my mouth and lick my finger. I'm not sure if we're finished yet. He pulls me up to him and kisses me. We keep going. He turns me around and rubs my hole with some of his cum. I fumble a condom out of my pocket and put it in his hand. He slips it on and slides in me. I wonder how effective the rubber is when he uses his cum as a lubricant, but I ignore the thought. I'm horny and start jerking off while he thrusts into me. He fucks me harder, demanding more. I'm impressed that he wants to come again, but realize that it clearly takes more effort for him this time.

The train makes a sharp turn and we lose our balance slightly. He slides out of me. "Get inside me again," I say and press my hand on his ass. He pauses briefly and then slides back into my hole. The break has done me good. The penetration feels softer and there is less friction between his cock and my insides. He thrusts into me faster. Greedier. I realize he's about to finish.

He pushes me against the sink so that I can hardly move and am at the mercy of his thrusts. As he groans and rams his cock into me one last time, I come into the sink. We both are still heavily breathing. For a brief moment he stays inside of me. Kisses my neck, before he pulls out.

When I get dressed again, I see the empty rubber lying on the floor. It feels wet inside me. I don't have time to think about it too much. "I have to get back to the cabin. My boyfriend is about to get in".