- Sign of Spring
- Signs A Twin Flame Misses You
- Signs of Attraction
- Signs of Love
- Signs We Don't See
- Silencios
- Silent As A Stone
- Silicon Secrets
- Silk & Gravel (Episodes 1-5 Box Set)
- Silk & Gravel (Episodes 6-10 Box Set)
- Silk Whispers
- Silver Bells & Santa Hats
- Silver Crown - Forbidden Royals
- Silver Edge
- Silver Line
- Silver Lining
- Silver Linings
- Silver Spoon Romeo
- Silver
- Simon... Spellbound
- Simone
- Simply Austin
- Simply Blair
- Simply Complicated
- Simply Crazy
- Simply with You - Eine Nacht mit Eric
- Simultaneous
- Sin igual
- Since Drew
- Since I Fell for You
- Since Yesterday: An Alpha Billionaire Romance
- Sinful (Book 2)
- Sinful (Book 2)
- Sinful (Book 3)
- Sinful (Book 4)
- Sinful Boss
- Sinful Chance
- Sinful Desire : Threesome Romance Collection
- Sinful Empire
- Sinful Encounter: Alpha Billionaire Romance
- Sinful Enemy
- Sinful Fling
- Sinful Magic
- Sinful Protector
- Sinful Queen
- Sing For Me
- Sing to Me
- Singe
- Singer of Visions
- Single Dad Burning Up
- Single Dad Next Door
- Single Dad On Tap
- Single Dad's Waitress
- Single Daddies
- Single Heart
- Sinnliche Klänge: Eine Rockstar Ménage
- Sins of Ashville
- Sins of Sevin
- Sir Cardiff
- Sir Jasper
- Sir Loin Of Beef
- Sir Tristan’s Estate
- Sir's Rise
- Siren's Song
- Sis, Level Up
- Sister's Arrogant Boyfriend
- Sisters in Bloom
- Sisters in Love
- Situationship
- Six Branches
- Six Nights of Sin
- Six Years
- Six-Gun
- Size Doesn’t Matter (A College Romance Story)
- Size of his Shoes
- Sizzling Desires : Menage MFM Romance Collection
- Sizzling Summer Reunion
- Skapad för Odjuret
- Skar
- Skeeter
- Sketch
- Skid
- Skid Marks and the Selby Slammers
- Skin Deep Melody
- Skin-Walker: Werewolf Shifter Romance
- Skinny Dipping
- Skipped a Beat
- Skipping Christmas
- Skipping Stones Series (Emily and Unexpected)
- Skirt Chaser
- Skirt Steak
- Sky to Sea
- Sky's The Limit In Mexico & In Devon
- Skönheten och Odjuret