>"Thanks for coming to the gym with me," Mia says, looking nervous as she glances around. "I dunno if I could do this by myself."
>Svelte ponies jog on a row of treadmills by the door, clad in colorful skin-tight outfits
>Mia isn't wearing anything, her long mane simply tied back
>"Maybe I should've... dressed up?" she asks sheepishly
>"You're fine," you say. You gesture at your own outfit, just an old shirt and shorts. "Don't need anything special to work out."
>You have her step up onto one of the treadmills and get her started with just a simple walk
>Despite her size, she does this effortlessly, her huge hips swaying as she plods along
>From here you run her through some basic transitions, having her switch frequently between a walk and a brisk trot
>The effort of quickly accelerating and decelerating her bulk does start to have an effect on her, as sweat beads on her pink forehead and her breathing gets heavier
>"How are you doing?" you ask, as she walks slowly during a short cooldown
>"Doing - okay," she huffs, panting. "What's next?"
>"Rollbacks," you say. "Strengthens the glutes."
>She grins at you mischievously. "Oo, my glutes, huh? They're big enough already, don't you think?"
>You look at her ass and nod sagely. "Good mass," you say. "Now let's make them powerful."
>This time you have her transition from a walk, to a trot, and then a canter; you have her run at that speed for only a few seconds before cueing her to perform the rollback movement
>She steels herself, pressing into the treadmill and flexing almost her entire body as she rapidly brakes
>After a set of five you have her do another cooldown
>Mia is really feeling it now, her body shiny with sweat, cheeks rosy, part of her mane loose from where it was tied back
>"I wanna do another one," she asks, nodding vigorously when you ask her.
>Her golden-orange eyes look distant but determined as she powers through the second set, her legs moving with impressive speed
>She's shaky when she steps off after the last cooldown, still breathing hard
>"Do you need to sit down?" you ask
>"Oh I'm fine," she says breathily, smiling from ear to ear. She grabs onto your arm for balance. "Just need a little - a little break, s'all."
>You lead her over to the freeweights area and sit next to her on one of the open benches
>"Whew," she says, smiling, her face still a little pinker than usual. "Can't believe I did that."
>"It looked good," you say. "We can increase the number of rollbacks next time."
>She laughs. "You're a hard taskmaster, Anon... but I like that."
>After you run through your own bench work, you have her do light wing-ups and conventional bench press
>Just the bar, so that she can start learning proper form
>You're impressed by the ease with which she's able to perform wing-ups, doing ten effortless reps with the bar
>"S-Sure!" she says, when you ask if she'd like to try increasing the weight a little. "Am I that good at it?"
>Her form looks fine, and after each set of three, you throw on another few pounds
>You're shocked as she continues to climb higher and higher
>She doesn't seem to have any kind of difficulty until she's pushing about 30 lbs shy of what you press for reps
>Two flight-school-age pegasi bros stare at her with open mouths
>Caught ya mirin'.jpg
>"Great work, Mia," you say, after she racks the bar. "You have fantastic potential."
>She blushes, her eyes shining. "I guess they have to be strong, to lug ME around," she says, flexing her wings wide before drawing them back in. "Gosh, I'm so freakin' hungry, is that normal after a workout?"
>"It's normal."
>She's practically bouncy with energy as you two depart the gym
>"That was a lot of fun, Anon! I'm surprised!" she says. "When do we go back, tomorrow?"
>"Day after tomorrow."
>"Aww, are you sure? I mean, I do wanna work on these glutes."
>Laughing, she flies up and past you, her tail brushing over your face
>She flaps her wings to playfully attack you with her ass, mushing it into your face
>You stumble, caught off guard, and fall back onto the ground
>"Ahh, Anon!" you hear Mia cry. "Are you okay?"
>She flies down to stand over you, straddling you with both sets of limbs, looking down at you with eyes full of concern
>"I too need to work on my posterior chain," you say ruefully. "My balance leaves something to be desired."
>"Oh, sheesh," she says. "You're fine. C'mon, let's go get a burger or something."
>"Very well."
>You bring the food back to her place, a small flat she's renting during her stay in Ponyville
>Together you curl up on her sofa and dig in
>"Guuh, I just want to nap now," she says, resting her head on your lap after devouring her burger and hayfries
>"Sounds good to me."
>You lie back on the cushions and pull her up onto you, letting her rest her face against your chest
>She's warm and very soft, her now-free mane hanging messily all over the place
>Smelling of sweat, hay, and hard work, Arrhythmia snuggles against you
>"Thanks again, Anon..." she says. "Let's get mad gainz... together.."
>Soon she is fast asleep, her breathing slow and gentle as she rests in your embrace