Which romance books are spice level 5?

smutrecs.com has rated 33 romance books at spice level 5 of 5, including Credence (5/5), Den of Vipers (5/5) and Fifty Shades of Grey (5/5). Level 5 (Explicit) means explicit and frequent; central to the book. Of these, 10 are rated 5/5, 10 are estimated at about 5/5 and 13 are rated as a range that includes 5, such as about 4–5, and listed under both levels.

Credence by Penelope Douglas spice 5/5
Den of Vipers by K. A. Knight spice 5/5
Fifty Shades of Grey by E. L. James spice 5/5
Heartless Heathens by Santana Knox spice 5/5
Heated Rivalry by Rachel Reid spice 5/5
Little Stranger by Leigh Rivers spice 5/5
Lords of Pain by Angel Lawson spice 5/5
Melt for Us by Molly Doyle spice 5/5
Sabotage by Shantel Tessier spice 5/5
Their Vicious Darling by Nikki St. Crowe spice 5/5
A Court of Silver Flames by Sarah J. Maas spice about 5/5
Blood Mercy by Vela Roth spice about 5/5
Dante by Sadie Kincaid spice about 5/5
God of Ruin by Rina Kent spice about 5/5
God of Wrath by Rina Kent spice about 5/5
Her Soul to Take by Harley Laroux spice about 5/5
Reign of a King by Rina Kent spice about 5/5
Ryan Rule by Sadie Kincaid spice about 5/5
Twisted Lies by Ana Huang spice about 5/5
Wicked Beauty by Katee Robert spice about 5/5
Asking for It by Lilah Pace spice about 4–5/5
Bared to You by Sylvia Day spice about 4–5/5
Game Changer by Rachel Reid spice about 4–5/5
Lights Out by Navessa Allen spice about 4–5/5
Pen Pal by J. T. Geissinger spice about 4–5/5
Phantom by H. D. Carlton spice about 4–5/5
Promises and Pomegranates by Sav R. Miller spice about 4–5/5
Reflected in You by Sylvia Day spice about 4–5/5
Reluctantly Yours by Erin Hawkins spice about 4–5/5
Roommate by Rosie Danan spice about 4–5/5
The Dare by Harley Laroux spice about 4–5/5
The Never King by Nikki St. Crowe spice about 4–5/5
The Ritual by Shantel Tessier spice about 4–5/5

Other spice levels

What each spice level means

Each book page lists the sources behind its ratings. Ratings marked "about" are estimates. How we rate