What are the spiciest forced proximity romance books?

Of the 11 forced proximity romance books smutrecs.com has rated, the spiciest are Credence (5/5), Dante (about 5/5) and Things We Hide from the Light (4/5). 6 of the 11 are rated spice 4 or 5, on a scale from 0 to 5.

1. 
   Credence by Penelope Douglas spice 5/5
2. 
   Dante by Sadie Kincaid spice about 5/5
3. 
   Things We Hide from the Light by Lucy Score spice 4/5
4. 
   Twisted Love by Ana Huang spice 4/5
5. 
   Black Ties and White Lies by Kat Singleton spice about 4/5
6. 
   Caught Up by Liz Tomforde spice about 4/5
7. That Time I Got Drunk and Yeeted a Love Potion at a Werewolf by Kimberly Lemming spice about 3–4/5
8. 
   Eyes on Me by Sara Cate spice 3/5
9. 
   Love and Other Disasters by Anita Kelly spice 3/5
10. 
    Under One Roof by Ali Hazelwood spice about 2–3/5
11. 
    Wings So Wicked by Emily Blackwood spice 2/5

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