@hambo First off, congrats on dedication! 342 chapters and counting is nothing to sneeze at. Some general thoughts to start off:
1) You have some branching points, which is good;
choice is an important aspect of the genre. I think you could do a little more with that - maybe have a chapter or two that branches off and then reconnects with the main path at some point, just to add a little variety to the mix.
2) You don't have any set endings - and to be fair, many stories don't, but some of your unfinished branches have been sitting out there for a while and might benefit from closure. To tie this together with my first point, one option you might consider is to write some choices that lead to endings - good or bad. They don't have to be
the ending to that branch, because you can always revisit it and add another option, but turning left instead of right and ending your character's days as a Goblin broodmare or something would be very fitting!
3) From what I've read, you have a relatively decent grasp of the kind of the D&D-esque fantasy setting you want, but there's not a lot of worldbuilding or consistency - the various "main branches" read like individual fantasy. If you could tie them together - same kingdom, the same characters that appear in different scenarios, etc. - it might help give a bit more depth to the individual storylines, and maybe encourage readers to pursue different paths.
4) You've avoided most of the general pitfalls as far as spelling and grammar from what I've read, so kudos on readability. Italics and bold for emphasis are both solid choices. Short passages are also good for overall readability, so good job there. There are a few places where things get a little confusing. For example in
Get taken completely by surprise. the troll is referred to as "She" throughout, but you've got two female characters there - the troll and Hilda - so a little more variety would go a long ways. "The She-Troll," "the monster," etc. You've also got a little bit of confusion on tenses and such like, to take that chapter for the example:
After taking her sword, the troll drops her on the ground.
After taking is a little awkward here - you might rephrase this as something like
Taking her sword, the troll let Hilda drop to the ground.
I'm not personally keen on your introduction chapters like
Hilda, a foolhardy knight due for dishonor or
Justine: A chaste paladin with a scandalous secret - the basic idea of introducing your characters, building a detailed visual picture of them in the reader's mind, is very important but the particular execution is a bit more telling than showing. Consider this bit:
Queen Belinda is in her late 20s, and extremely voluptuous. She's 'Extra THICC' (as the squires say), MILFy even, if she had ever had any kids. She has long blonde hair that cascades down her back when she lets it down. She's 5' 3" and has massive G-Cup breasts, a bountiful ass, thick thighs, and a curvy belly. Who would have thought living in luxury your whole life and never having to lift a muscle would not be conductive to exercising?
It's a very
out of character voice, rather than the start of the story proper. Consider how this might read if it was the actual start of the narrative:
Queen Belinda yawned as the dawn filtered through the curtains of her bedroom. Her chambermaids said nothing as the royal presence rolled into a sitting position at the edge of the bed, casting their envious glances at her generous curves. Belinda knew that among themselves, the young women referred to her as "her THICCness"—and would likely call the queen "her MILFness," if she ever had any children. The queen rose from the bed and sat before the mirror to allow the maids to put up her golden hair. When loose, the blonde tresses cascaded down her back, quite unmanageable but the maids would comb and braid it for her without the queen herself lifting a finger. She smiled to examine herself in the mirror...petite at only 5'3", she could yet admire the massive breasts with their wide pink nipples that rested against her soft belly, the hefty curve of her thick thighs and bountiful ass.
Maybe not something exactly like that, but you get the idea: make it part of the scene as you introduce the character and the setting. Part of this is a stylistic difference: you seem to prefer short, direct sentences (nothing wrong with that!), but you might want to try expanding on your descriptions of people, places, and actions a bit.
As to your individual concerns:
I'm concerned about pacing, and think I may be verbose.
Your chapters are very short starting off, and even though they lengthen a bit as you go along, I haven't found any particular point of the story that bogs down so much as you get past the initial few branching paths and then into fairly long linear narratives. So I don't think pacing is an issue, and verbosity definitely isn't. If I had a suggestion with regards to pacing, it might be to better guide the reader's expectations - many of your later chapters especially end with the question "What's Next?" instead of implying any possible choice might be coming up - that removes a bit of reader imperative from the narrative. You want to make sure the reader wants to click through to the next chapter, and the question can help frame expectations as much as the next title.
I would also love some advice on how to write better sex scenes.
Emphasis on touch, taste, smell, sound, thought, and emotion. You want to communicate sensuality, anticipation, enjoyment, position, and action. So for example, in
The Girls Debase Themselves:
Hilda cries out in pleasure as his fingers find her g-spot. She babbles like a baby as the muscular man takes her to previously unknown heights of pleasure. She falls forward onto his chest, her mouth open and her tongue lolling out as she's fingered stupid.
Silvia's masseuse meanwhile has given up on any pretext of a massage and is now on the table, holding the little drow in place as he keeps his massive tool just outside her waiting hole.
"Beg me for it," he demands, his arms pinning the tiny woman beneath him.
"Please! I need it!" Whimpers the drow, as she falls back into old behaviors. "Please master!"
He smiles at that, "and what should I call you? Hmmm?"
"Slut! Call me slut, master! Or anything else you want, just give me that big juicy cock, please!" Silvia says as she pitifully tries to grind against the head of his dick.
It's not a bad passage, and you're covering touch and emotion fine, but think of the positioning: where is everybody? We know someone is "fingering" her g-spot - who is it? How long or thick are his fingers? What is he doing, exactly? Where is Hilda sitting/laying/standing while this is going on? Is her heart thumping, breasts heaving, cunt spasming, or toes curling? How much light is there in the room - can she see the action going on, or is it dark and dim, so that her mind is focusing on her sense of touch? She cries out in pleasure, but what does she hear - her heart hammering in her ears, the soft moans of the drow, etc. What does she smell or taste?
It can feel a little redundant re-iterating who and where people are in a scene, but keep in mind not everybody is going to be reading your chapters in order - plenty of people skip straight to ones that sound sexy, or whatever is newest - so it never hurts to "set the scene" in brief before getting into the action.
You were doing really well at the end with the drow being teased, letting the anticipation build up. The follow-up in the next chapter, however, is another example of telling rather than showing:
Meanwhile, Silvia's submissive streak continues to shine through as her masseuse degrades her further.
She's begging him for cock like a fuck-hungry slut, all sense of pride, self-control, and authority having melted away from the once-intimidating drow.
This is really something that would be better to see "played out" rather than summarized; you never describe the moment when Silvia is finally penetrated, how it feels to her, how the masseuse dominate or demeans her - and those would all be fun things to see!
If you ever think about revisiting this kind of story from scratch, you might consider doing it in game-mode. You can set things like breast- and hip- size descriptors ("Extra THICC" "Child-Bearing") and change them as the characters go through whatever encounters (Clothed -> nude if the goblins steal her clothes, G-cup -> J-cup as the Fountain of Plenty works its magic, etc.) I'm not suggesting you try to do that for this story - that's the kind of idea that works best when you implement it from the beginning - but it might be handy approach for you.
Anyway, I hope some of that helped.