- Sink or Swim by Annabeth Albert
- Sins of a Wicked Princess by Anna Randol
- Six Degrees of Scandal by Caroline Linden
- Sixty-Five Hours by N.R. Walker
- Slightly Dangerous by Mary Balogh
- Slightly Married by Mary Balogh
- Slippery Creatures by K.J. Charles
- Smuggler’s Moon by Cynthia Wright
- Someday, Someday by Emma Scott
- Someone to Hold by Mary Balogh
- Someone to Honor by Mary Balogh
- Someone to Trust by Mary Balogh
- Something Fabulous by Alexis Hall
- Sometimes a Rogue by Mary Jo Putney
- Sons of Sorrow by Nazri Noor
- Soulbound by Kristen Callihan
- Spectred Isle by K.J. Charles
- Splendid by Julia Quinn
- Splendor by Brenda Joyce
- Spooky Business by S.E. Harmon
- Spotlight by Eden Finley
- Starcrossed by Allie Therin
- Stars & Stripes by Abigail Roux
- Static by L.A. Witt
- Sticks & Stones by Madeleine Urban and Abigail Roux