Biology lesson

Your workday is quiet, mostly paperwork. It’s not a difficult job, but it is a bit boring. You understand the importance of it, though. There’s a lot that goes into documenting and recording everything involved with the AWIO. Still, sometimes you miss the physical aspect of your old job. With Mazzy and the others cooking for you, you worry a bit about gaining weight.

On your drive home, you’re thinking about that, and you come to a realization. You’ve never seen any of the girls doing anything to maintain their physique! Sure, Mazzy and Ellie aren’t skinny, but you wouldn’t even call them chubby, let alone overweight. Meanwhile, Kenna and Sirona could be fitness models, tall and muscular. And Dakota is rail thin, seemingly without any effort!

It’s a puzzle you ponder as you park and head into the house. You find Dakota, Sirona, and Kenna lounging on the couch when you come in, and you can hear clattering in the kitchen that tells you where Mazzy and Ellie are. Dakota pops up from between the two bigger girls to make space for you, and when you sit, she flops right down in your lap, planting a kiss on your lips.

“Soooo…how was work?”

You chuckle. “It was fine. I sometimes miss the physical labor, though. I’m worried about gaining weight from Mazzy’s cooking.”

Dakota laughs. “Don’t worry about it, we’ll work those calories off in bed!”

Kenna smiles, nodding. “Yes, we’ll give you a good workout!”

You smile and shake your head. “I can’t say no to that. I am curious, though, as to how you girls stay in shape. I never see you exercising.”

Kenna laughs. “I’m blessed with a metabolism that prevents that. Have you ever seen a fat dragon?”

You roll your eyes. “Before you, I had never seen a dragon at all!”

The dragon girl grins triumphantly, showing her sharp teeth. “I rest my case!”

You laugh and roll your eyes again. Sirona speaks up, her voice quiet, as usual. “I’ve..done some reading on this, actually.”

You look at her curiously. Despite her fierce appearance, you’ve learned that sirona has a keen mind, though she’s hesitant to show it. “Really? Do tell.”

She nods. “Monster girls tend to have very effective metabolism. It’s very rare for a monster girl to be over or under weight. Mazzy and Ellie are good examples. Goblins and halflings are rarely muscular, but you’ll almost never see one that’s overweight, either.”

Your brow furrows. “I wonder why.”

Sirona shrugs. “I think it’s partly magical. But also…monster girls need to attract…mates. And since we don’t…give birth to many monster boys, our…mates…are humans, usually. So…we’ve adapted to…appeal to human eyes.”

Dakota giggles. “Well, whatever it is, it’s working, you’re super hot!”

Sirona blushes, looking down and biting her lip. “Thanks…”

You smile, leaning over to kiss her cheek. Sirona smiles back, and you see the happiness in her pink eyes as she snuggles closer to you. Meanwhile, Dakota leans against your chest.

“Well, I’m no monster girl, but I’ve always been skinny. And you can’t tell me that our sex isn’t a workout!”

You chuckle. “Fair enough. I was just curious. Mostly I’m worried about myself.”

Kenna laughs. “Don’t worry, my mate. We love you for you, even if you get pudgy. And if you do, we’ll help you work it off!”

You smile at her. “Thanks, Kenna.”

Kenna winks. “Thank me later. In bed.”