" But then he rolls his eyes and gives me a half smile. “Fine. But if you must give me the Mark of the Beast, at least put it where I don’t have to see it constantly.”
“Such as?”
“If we want to be in keeping with what I think of the damned symbol, I’ll drop trou and you can stamp it on my ass. But in the interest of propriety . . .” He rolls up his left sleeve, and I stamp the inside of his arm. "

― Rysa Walker , Time's Divide (The Chronos Files, #3)