I compiled the following list as a reference a couple months ago during Gracie Lacewood's Ten Book Erotica Challenge. It might not be the most complete list available, but hopefully it's enough to at least get your creative juices flowing (or your other juices whatever).
Adjectives
Aggressive
Arched
Aroused
Behind
Breathless
Circular
Control(ed)(ling)
Creamy
Deep
Delicate
Delight
Eager
Erotic
Excited
Excruciating
Exquisite
Firm
Forceful
Full
Gentle
Greedy
Hard
Heavy
Hot
Hungry
Husky
Intense
Intoxicating
Lustful
Needful
Overwhelming
Passionate
Pleasurable
Probing
Pulsing
Ragged
Raw
Relaxed
Relentless
Rhythmic
Riled
Rough
Scream
Sensitiv(ity)
Sensual
Sexy
Shocking
Slowly
Soft(ly)
Splayed
Spreadeagled
Swollen
Tantalizing
Tense
Throaty
Thrusting
Tight
Tingly
Torturous
Unbelievable
Vehement
Vigorous
Vulnerable
Wet
Wildly
Verbs
Access
Ache
Anticipate
Arch
Arouse
Beg
Bite
Claim
Climax
Control
Combust
Convulsed
Cry
Dipped
Drag
Drive
Drop
Emptied
Endure
Enter
Excite
Explode
Filled
Fisting
Flex
Flicked
Force
Fuck
Gasp
Grab
Grind
Grip
Groan
Growl
Harden
Ignite
Impale
Infusing
Insert
Intoxicating
Invade
Lust
Massage
Moan
Need
Nipped
Overwhelmed
Panting
Penetrate
Perform
Pleasure
Plunge
Pound
Pray
Pressed
Probe
Prod
Provoke
Pulse
Push
Quiver
Relax
Relieved
Ride
Riled
Ripped
Rocked
Rubbed
Shift
Shock
Shudder
Slap
Slid
Slipped
Spilled
Splayed
Spent
Squeeze
Squirm
Stalking
Stirring
Straddle
Sucked
Sweetness
Swelling
Swirled
Stroke
Tantalized
Taste
Tensed
Throb
Thrust
Tighten
Tingle
Tonguing
Tremble
Tweak
Undulate
Unleash
Whimpered
Want
Yearn
Nouns
Access
Aggression
Anticipation
Arousal
Control
Convulsions
Come
Climax
Delight
Endurance
Excitement
Explosion
Fire
Fistful
Force
Fullness
Girth
Greed
Grip
Groan
Growl
Hardness
Heaviness
Hunger
It
Juices
Length
Lust
Moan
Motion
Need
Passion
Pleasure
Pound
Provocation
Relief
Rhythm
Rosebud
Sensation
Shock
Shudder
Taste
Tension
Throb
Tightness
Tingling
Vigor
Vulnerability
Want
Wetness
Wildness
Yearn
Body Words
Anus
Ass
Back
Balls
Body
Breasts
Bud
Bulge
Clit
Cock
Cunt
Digit
Eagerness
Erection
Finger
Fingertip
Flesh
Folds
Girth
Hard on
Head
Hips
Juices
Legs
Lips
Mouth
Neck
Nipple
Pelvis
Perenium
Pussy
Sac
Shaft
Skin
Spine
Thigh
Throat
Tip
Tongue
Waist
Useful Phrases
Give yourself to me
Biting his thumbnail
Left a burning trail
Arched my back
Lustful aggression
Slowly running his hands up her legs
I will have you
My cock ached for you to consume it
Massage my clit
Unleash the probing thickness inside his pants
Lust dripping from his tongue
At his mercy
Hard silken flesh
Emptied himself into me
Waves of Exctasy
Her body displayed like an erotic offering