Warm on a Cold Night is the official start to the series. It Ain't Wrong Loving You is just a prequel so you technically dont need to read it before WOACN unless you want to know more about how humkeng got together.

The official chronological order is:

1. It Ain't Wrong Loving You (🎮👑prequel)
2. Til The Evening prequel. (IAWLY sequel)
3. Good Together (🐶🐰 spin-off)
4. Warm on a Cold Night (🍊🍓 official start to series)
5. Somebody That Loves You 🍚🐥🐥🐱 spin-off)
6. Treat You Right (sequel to WOACN)
7. All In The Value (3rd part of 🍊🍓's story)
8. No Song Without You (2nd part to 🐶🐰's story)