- Storm Riders
- Storm's Interlude
- Stormborn
- Stormie Jones: The Stolen Mail Order Bride
- Straight to My Heart
- Stranded at the Rodeo [Ransomed Hearts 3]
- Stranded in Salt Lake
- Stranded With The Rancher
- Stranded, Stalked and Finally Sated
- Strange Beasts & Cowboys (A Boxed Set of Four Mail Order Bride Romances)
- Strange Journeys & Secret Recipes (A Pair of Mail Order Bride Romances)
- Stranger Things Happen
- Strangers In The Darkness (A Pair of Mail Order Bride Romances)
- Stream Ran Dry (The Westerners, Book Two)
- Street Of Dreams
- Strength Under Fire
- String the Cranberries
- Stringer and the Lost Tribe
- Stringimi forte
- Strong & Wilde (A Cowboy's Promise)
- Strong & Wilde: Part One (Sweet Western Cowboy Romance)
- Strong & Wilde: Part Three
- Strong and Steady
- Strong, Silent Cowboy
- Strong-Willed Cowboy
- Strummin' Up Love: A Country Music Star Western Romance
- Stryker's Girl
- Stubborn Bride
- Stubborn Cowboys & Their New Brides: A Boxed Set of Four Mail Order Bride Romances
- Stubborn Cowboys & Their New Brides: A Boxed Set of Four Mail Order Bride Romances
- Stuck in the Saddle With You
- Stud for Hire
- Studs and Stilettos
- Studs in Spurs
- Sturm über Afrika
- Su Promesa por Honrar
- SUBSTITUTE BRIDE
- Substitute Montana Bride
- Suckled by My Boyfriend's Daddy 3
- Sugar
- Sugar and Spice
- Sugar Girl
- Suitable for Marriage
- Sultry Oblivion
- Summer
- Summer Angel
- Summer at Mustang Ridge
- Summer at Stallion Ridge/Summer at Stallion Ridge/Corralled in Texas
- Summer at the Ranch
- Summer Breeze
- Summer Chaparral
- Summer Heat
- Summer Lightning
- Summer Nights with a Cowboy
- Summer Return
- Summer Texas Bride
- Summer with the Cowboy
- Summer's Wicked Cowboys [Casanova Cowboys 3]
- Sunny With a Chance of True Love
- Sunnyside Up
- Sunrise Over Texas
- Sunset and Steel Rails
- Sunset Pass
- Sunset Ride
- Sunshine and Shadow
- Superare la notte
- Surprised by a Baby
- Surrender Milady
- Surrender my Heart
- Surrender to Love
- Surrender Your Heart
- Surrounded by Pleasure
- Surrounded by Secrets
- Surrounded by Temptation
- Surrounded by Woods
- Survival On The Oregon Trail: A Novel
- Sus novias de Bridgewater
- Sus novias de Bridgewater - Libros 4 - 6
- Sus novias de Bridgewater - Libros 7 - 10
- Susanna's Choice
- Suspicious Montana Christmas/High-Calibre Christmas/Winchester Christmas Wedding
- Susúrrame
- Suzanna Bound by Love (Passion on the Ranch, Book 4)
- Suzie Q
- Sweet Autumn Surrender