Ilona Andrews

The colossal lion jumped and landed a foot away from me, the dark mane streaming. The impact of his leap sent sparks flying from the fire. His eyes burned with molten gold. The powerful feline maw gaped open, showing terrifying fangs as big as my hand. Curran snarled.
I swatted him on the nose. “Stop it! You’re scaring the people who rescued me.”
The gray lion snapped into a human form. Curran jerked his hands up as if crushing an invisible boulder. “Aaaaaa!”
Okay.
He grabbed the edge of a big rock sticking out of the grass. Muscles flexed on his naked frame. He wrenched the boulder out of the ground. The four-foot-long rock had to weigh several thousand pounds—his feet sank into the grass. Curran snarled and hurled the rock against the mountain. The boulder flew, hit like a cannon ball, and rolled back down. Curran chased it, pulled another smaller rock out of the dirt, and smashed it against the first one.
Wow. He was really pissed.
Astamur’s eyes were as big as plates.
“I can get him to put those back after he’s done,” I told him.
“No,” Astamur said slowly. “It’s fine.”
Curran picked up the smaller rock with both hands and threw it onto the larger boulder. The boulder cracked and fell apart. Oops.
“Sorry we broke your rock.”