Dang!  That's an impressive image / picture / situation for Mark.  Thank you for suppling a new link.

One has to wonder what exactly Emma "just came down with" and why she's "not really feeling to well".

I really look forward to future chapters, especially since we now know Chloe is a Dominatrix and perhaps likes some or all of her submisives shrunk like Mark.  The wearing of a shrunkie as an article of clothing or body decoration is also a terrific fantasy.

One last point, in the image you attached, I believe she is wearing latex, not spandex {even though some spandex can be shiny too, but not as shiny as latex usually is}.

Nice!  Very Nice!

Agatha "the Black Hearted" sounds like the type of self-absorbed Giantess that defines the unaware genre even if she does destroy tinies knowingly.  It's her complete detachment from human suffering and indifference to her victims that makes her such an incredibly unaware Giantess.

I really like the fact she desposited Marcus on her floor just to ignor his existance.

The scrying pool dimension play is great.  Perhaps she could reroute some of the exscape portals of "thieves and assassins" to positions of subservience to Agatha {e.g. exit portals between her toes, in her stomach, on her clit, or up her butt as possibilities should you so choose}.

A young woman performing analvore never gets tiring.  It's simply too popular and interesting a fantasy for us tiny wannabes.

It would be nice to find out if and where Alexis might be wearing another tiny, or perhaps tinies.

Feeding disobedient tinies to her cat seems, well oddly enough perverse, rather than her simply swallowing them herself.  Hopefully such a waste of a tiny being fed to her cat never happened and is only a threat, as she either may eat them herself or just keep them locked away in punishment in order to rehabilitate them.  But hey, it's your story and it's just fine the way you are writing it.

At one point Alexis threatens to squash Riku like a bug; yet you write that shrunken men are resiliant.  Would he be squashed and killed, or squashed and reform?

You state Riku is only 3 inches, yet describe him and his sorroundings as if he is 1 inch or less {e.g. the deep valleys of the tiled floor, Alexis' shoes hundreds of times bigger than Riku}.  Just how small is Riku?

Aside from very few grammatical errors {that's just me being nitpicky, your grammar is fine} you have a most interesting and enjoyable story.

Really nice chapter.

I have to say I like Odysseus's ideas.  I also have to say a lot depends on Rikus' new size.  To be Alexis' buttplug, 3" makes a lot of sense, especially considering Riku felt so "bothered" at not being noticed stuffed in Alexis' cleavage so much so that Brooke did not even notice him in there.

As far as where Alexis hides Riku on Brooke, even at 1" or less, the ability of Alexis to slip Riku inside Brookes' "tight sports bra" or "tight yoga shorts" seems remote.  Though dropping him inside Brookes' awaiting jogging sneakers would make a lot of sense for a tiny of 1" or less.

At 1", Brooke could easily not notice Riku till she was running and mistake him for a pebble; but her sneakers are probably already full of 1" tiny men sewn into the insoles so he'd almost be negliable.

At 3", Brooke might think her sweat sock is bunched up under her toes.  She ignores it at first, then notices it wiggling annoyingly as she is running.  Going along Odysseus' idea, she could take off her sneaker, discover Riku, and stuff him down the back of her thong.

Staying with this scenario, Riku could discover a group of other tiny men stuffed in the back of Brookes' thong, and the addition of him at his size along with both the pressure of Brookes' thong and her jogging cause several tinies to be forced inside her asshole {which Brooke feels and enjoys}.

I also like Odysseus' idea of a tiny as a toe ring {one of my pseudonyms' is "HERToeRing"}, only with the stipulation that the tinys' head is wedged firmly in the space between her pinky and ring toe so that all he senses is the space between those two toes and their sweat and toe jam {YUMMY!}.

One idea, before Alexis drops Riku in one of Brookes' stank sneakers, she whispers to Riku "If you decide to come back to me, you do so with the acceptance you are to live in my ass as my buttplug.  I will not shove you up there again.  It's up to you to crawl inside of my asshole on your own, however you need to do it, you are to do it head first".

After suffering Brookes' sadism {what ever hijinks she bring upon him, perhaps peeing on him after she gets home after her long jog, or stuffing him in the front of her sweaty thong as she rubs out a few orgasms, without bothering to shower, then fooleshly falling asleep thinking Riku will still be stuck in her panties when she wakes up}, Riku sneaks away and works his way to Alexis' room, where she is in bed falling asleep.  Riku climbs up her bed and under her covers, gazing in amazement at her long, sexy legs till he reaches her buttcheeks.  He works his way up one of her buttcheeks, then squirms between her cheeks and head first inside her asshole as he not only accepts but embraces his life as Alexis' buttplug.

As Alexis is dozing off, she feels Riku squirm his way between her tight buttcheeks then up her asshole.  She smiles, not bothering to acknowledge him nor his existance, and she falls asleep knowing her buttplug has come home.

These are some ideas; but I would like to convey the advice another writter here at this site gave me early on {yes, I a have a few stories under the penname D W (Dark Writer from WritingDotCom) you may want to read if you have time to waste}.  The advice she gave me was write for yourself.  You will never please all of your readers, so simply write for your own pleasure and those who appreciate your style and subject matter will do so with the profound knowledge you are writing what and as you yourself believe in.

Definitely option #1 with the party scene and drunk teens {girls only hopefully} getting frisky.

Very curious as to Brooke's spells and witchcraft scenarios.

Still a bit confused as to Riku's shrunken size.  How small is he?

Not about to complain about some Giantess / shrunken guy butt action.  Sounds great.

Some questions, why did Alexis give Riku away so readily unless she has some plans for him?

Who are these other tinies Brooke keeps talking about and will we see her using / abusing any alongside Riku?

I love the conditioning / training that Olivia is putting Reese through.

At 6' 6", adding another inch or two, though great, would make Olivia more freakish more than anything else; but adding muscle mass {e.g. She-Hulk} would be cool.

Since Reese started out at 4' 9", a new measurement of 4' 5" or less, and still shrinking, since Olivia came home would be great to hear.

Is Olivia going to confront Reese's shrinking and servitude to her?  Will Olivia offer Reese the position of being her personal slave, in response to caring for him in his ever shrinking form?  Will Reese see this as his destiny, especially focused on Olivia's ever huge breasts?

The following toilet sceen would be nice to read.

I hadn't realized Sharon plays with their minds so much. 

It could be an interesting twist if instead of saying how much Chris and Ann love one another, they instead state how much they both love Sharon; and then make love while each of them think about Sharon, either freely or not.

Sharon could ask them afterwards which was better, being in love with each other while having sex, or being in love with and thinking of her while having sex with each other.

It would be nice to hear some prayer sessions to Sharon. 

Oh, putting the drive, their entire existance in her back pocket was a great touch.  Perhaps Sharon could put the drive elsewhere on her body such as in her clevage.

You have a unique concept going on here, please continue on.

It would be interesting if he had the option of listing the objects he wanted to try being, then given a selection of women who are looking for such items.