[FM] My gym friend’s FWB blew him off, cancelling on him on his birthday, so I gave him the best blowjob he’d ever had instead

I've been flirting with Mark in the gym for a while. I'm very friendly in there and as much as I love hitting the weights, I chat to so many people. It's the ultimate playground of sexual lust.

Anyway, guys, I need to tell somebody… I gave really, really good head. I'm proud of it. I get off on it. There aren't many things more intensely pussy wetting than when you've got a nice, big dick in your mouth. It's an orgasm you work for and deserve, therefore, own your skills and tell people how good you are with your mouth.

Mark's got a friend with benefits (FWB). I forgot her name (oops). She trains at our gym and I see her occasionally. We've smiled to each other but that's it, and they look hot AF together.

I never thought about intruding. I heard from mutual friends they were very casual. To the point where I'd flirt with him in person and get little comments in the DMs later about how my leggings looked that day.

I asked Mark if he was training the following day. Turned out he had a birthday fuck buddy sesh planned, in his own words.

I wished him happy birthday, even whispering, "give it to her good. Let her know how lucky she is."

The next morning, I messaged telling him that if he wasn't already bending her over there and then, he should enjoy something on his birthday. Yes, again, VERY casual between those two… SO, I… Sent him a selfie. Nips purposely made hard, in a clear white top. No bra, just because.

I know, out there. 3 months of flirty build up. I wanted him but I liked that he was in demand enough to have options.

I received, "she blew me off. Not in a good way. Birthday sex cancelled."

I literally called him. I put it on a plate. I was heading to the gym and turned back around. I told him I could come round, and that I was in a giving mood. That's all it took.

I'll cut to the good part. What a fucking thrill.

I found myself on my knees on the floor of his lounge, pillow underneath, dick in mouth and giving him the fucking incredible combo of my twisty strong right hand and soft lips. Don't suck hard, it's about sloppy kisses and a firm grip. Guys just can't last that long with it.

I made the blowjob last. I could've finished him in 3-4 minutes, but I made it last nearly triple that. I licked along his lengthy 6" shaft, cupped his balls, got my tits out halfway through and looked into his eyes as I told him, "guess where you're cumming?"

A flirty, "I don't usually cum from head…" made me go into overdrive. That was fucking it. I wasn't playing around.

Maybe 2 minutes later, as I felt Mark get weaker and weaker for me, his arching hips told me the story. I placed my tongue underneath his head, and he came into my mouth, shooting huge bursts into the back of my throat.

Composing myself, I swallowed burst after burst. I felt so fucking sexy and as his head arched back on his sofa, he mumbled something. I played with his head again and made him repeat it, playfully giving him post orgasm play…

He confirmed I gave him the best blowjob ever. On his birthday too…

Her loss, my gain.

Something tells me that given I received such praise, mmm, maybe she needs to up her head game.

Is it filthy of me to want him to be sleeping with her and me at the same time? I mean, FWBs style. Or a threesome. Damn. Both are mighty appealing, IF she would go for it… Something tells me he would. SO tempted to suggest it.