Pairing clients for a better workout. [MFM]

I have been training CS(M25) for about 2.5 years at this point. When we started he just graduated university a strong stocky powerlifter who wanted to transition into bodybuilding for the aesthetics and to possibly compete. After 2.5yrs of, proud to say, natty hard work, he has recomped his body in a way that really brought out the natural strong points of his physique along with modest mass gains but he was still far from stage ready.

MD(F29) on the other hand is a client who signed up with me during the 'new year's resolutioner rush' of that year and is one of the handful who committed to their fitness lifestyle. She was somewhat physically active but found that she plateaued due to inconsistencies in her regimen. She's a nice brunette with long wavy hair, attractive Mediterranean features, and nice handfuls of tits and ass. I couldn't resist not adding her to my rotation of women.

One time post sex MD opened up the discussion of an MFM threesome with her and some other dude. I have a thing for group sex always find ways to have them so this was a pleasant surprise suggestion from MD; also sexually open women who know what they want is hot as fuck. I asked if she had anyone in mind. She told me to show her any of my friends I think would be down and she can just choose. I obliged. She starts going through my socmed. A while later she showed me a picture of a dude. it was CS. She went through the saved story thread showcasing my clients' progress pics and fished CS out of it. I said sure.

CS and I are cool with each other enough to talk about sex stuff so it really wasn't a problem getting him to agree. Though i started thinking that instead of just asking him straight up, why not make it a surprise? I spent the next weeks piecing together whether he's down for a group thing with another dude. Whether he's taken/monogamous. etc. And when I got all the info I needed I made a rough plan, talked to MD about it and put it in action.

It was on a late Saturday morning I scheduled CS to workout with me. I told him I'm checking out new gyms just cause it's a hobby of mine and we'll be doing our training there and I'll be paying for his day fee at the gym(no he didn't question it and just went along with it). I sent him the loc for the parking lot we'll be parking in and walked from there. He was lowkey getting confused cause it was mostly residential houses but it really wasn't out of the ordinary to see an establishment here or there so I guess he just didn't question it.

We get to MD's place and I gave her a call saying we're here. She opens the door fresh out of the shower, topless and wearing a towel around her waist. CS looks confused and shocked. I tell him to get in. He follows without question. The towel drops before I can fully close the door. MD is on her knees rubbing CS and I's crotches.

'You motherfucker!' CS tells me. I just laugh as we both whip our dicks out.

Looking at both our dicks, we could tell without saying a word that MD has her work cut out for her. We get to work.

Double blowjobs. Tit jobs. Spit roasts on all fours and on missionary. Cowgirl and blowjob. DP(first time CS fucked ass). The entire afternoon was a good old MFM fuckfest.

CS had to call to cancel plans. I ordered doordash. We fucked. Hung out. Fucked. Took breaks. Took cialis. Took turns. Fucked some more and then some. No hole left unstretched. We stayed the over that night. The morning is just back to more sex.

They started hooking up. I'd join them. Some cases I'd call CS to join me and MD or other women I'm fucking. Years later after CS's first natty bodybuilding competition I had a group fuck fest ready for him a few days after to properly get that testosterone running. I pride myself in training my clients to lift hard and fuck harder.