His Tesoro (The James Series book 1 )(BWWM)

"let me tell you something, darling. you've unlocked a side of me, even I fear. but since you want to keep me up all night, challenging me, he's gonna show up at some point." Mateo whispers, huskily into my ear, gripping my neck. "what are you talking about?" I whisper. "like how I show no mercy when killing someone...