A guide to writing good smut

Words and Phrases

Honorifics the sub can call their D0m

- Master
Often connected to BDSM
- Daddy/Mommy
The most commonly used
- Sir
Just a preference
- Boss
For your CEO/worker fics
- King/Queen
Often roleplay-related
- Mister/Mistress
Can also be connected to their name, Mr.../Ms.../Mx...
- God/-dess
This one may sound awkward but it connects to specific k!nks
- Captain
Again, for more specific roleplay

Names the D0m can call their sub
(Remember they don't have to 'address' them this way)

- Kitten/Pup/Bunny
- Slvt
- Baby
- Slave
- Wh0re
- Sweetheart
- C*mslvt
- Toy
- pet
- c*m dumpster
- honey
- darling
- desperate [nickname]
- eager [nickname]
- dirty [nickname]

You can absolutely combine these

Praising (example) phrases

- Good girl/boy/pet/etc
- You're doing so good for me
- you're perfect
- just like that/that's it
- I love you (never overrated)
- you're so tight/warm/pretty/etc
- address with 'my ...' to claim them
- you feel so good
- no one else can have you/you're only mine
- that felt/was amazing
- harder/faster/more/etc
- doing so perfect just for me
- there you go [nickname], you deserve it

Degrading (example) phrases

- My little fvcktoy
- can't do anything right/by yourself
- does (Dom) need to help you?
- nothing but a slvt for me
- you want it so bad don't you
- needy wh0re
- don't look me in the eyes
- you've been bad
- you deserve a punishment
- can't even c*m when I tell you to
- useless [nickname]
- my personal stress reliever
- just a toy for me to use
- pathetic little [nickname]

It's really less a thing of what you say but more or how you say it

I recommend you add a nickname to pretty much any of these phrases you use

Phrases NOT to use (generally)

- "their tongues fought for dominance"
It's outdated. Don't do it. It doesn't sound good, even when everyone
does it, it's a bad take, trust me
- tongues or lips "dancing" together
It sounds weird don't do it
- "made them gasp and slipped his/her tongue in their mouth"
This is pretty awkward if you think about it. Try really imagining this, it's not a pleasant thought
- "their teeth clashing together"
That's not how you kiss. If that happens, you're doing something wrong
- "they blushed"
It's okay to use it once or twice during your smut chapter but don't overdo it, it's become such an overused phrase, be subtle with your blushing (also not all people (can) blush)
- "releasing a breath they didn't know they were holding"
You're doing no one a favor writing this in your story. Use "let out a sigh of relief" instead for example
- a character "smirking"
It's not a fancy way of saying 'smiling'. Imagine your scene in your head and how it would look if the characters smirked all the time. Awkward. You can use this word very subtly and carefully chosen, but it's also way too overused
- "the brunette" "the raven haired" "the blonde"
Aside from the fact this is really f*cking annoying, it's not very sexy either. Use their names as much as possible, it won't get annoying that easily, I promise. This mistake is incredible common in fanfiction. Be better, use names and pronouns.

I also want to address a common used writing style in fanfiction, which is stuttering like this:
"P-please, n-no"

Though I am guilty of this myself, it's definitely not the way to go if you want to write a realistic scene.
When people stutter out of nervousness or emotional overwhelm, they tend to cut off words or sentences, or repeat and mix them up. They do not repeat single letters. (I'm not talking about the condition that leads people to stutter)

So try this instead:
"Please- please no, I- I promise, I- I'll make it...gonna be better, promise, please, I promise"

Phrases/words to use

Describing sound

- whispering
- m0aning
- slapping
- hoarse
- raspy
- breathy
- panting
- whining
- whimpering
- babbling
- mumbling
- squelching
- squeaking
- bumping
- gasping
- hissing
- shaky

Describing movement/action

- rutting
- grinding
- thrusting
- humping
- thrashing
- clenching
- grabbing
- twisting
- twitching
- pumping
- licking
- sucking
- mouthing
- nipping
- biting
- teething
- feeling
- pressing
- holding
- slamming
- wincing
- flinching
- bucking
- arching
- kicking
- handling
- kneading
- spanking
- nibbling
- twirling
- teasing
- jabbing

Adjectives (adverbes) to use

- hard
- harsh
- whiny
- needy
- desperate
- ruthlessly
- mercilessly
- slvtty
- pathetic
- gaping
- wanting
- welcoming
- putty
- powerful/powerless
- pitiful
- p0rn0graphic
- arousing
- sexy
- warm/wet/tight
- k!nky
- shameless
- embarrassing
- guilty
- dirty
- delicious
- inviting
- gently/carefully/tenderly
- subtle
- bruising
- obedient
- bratty
- tame
- behaved/misbehaved
- lewd

Maybe you can think of even more!
I once read a post about this topic but that was long ago and I couldn't find it again. Thanks to that one person on Tumblr who once made a similar list and helped me in my early writing days! (There are still lots of those lists on Tumblr if you need more) I hope that this list can be just as helpful to other writers too

Leave a vote and a comment and see ya next time <33