How Much ual Material is in the "Mercy Thompson" Books by Patricia Briggs?

I recently had someone recommend to me the "Mercy Thompson" series by Patricia Briggs. I really enjoy fantasy literature and the premise sounds interesting; but I've had enough experience with the genre to know some writers use a to spice up their plots. I'm a mature adult and a fantasy writer myself, so I'm not against sensuality in books if the story really calls for it. But I have a strong dislike for excessive ual material/a. Is there ual material in the "Mercy Thompson" books and, if so, to what degree is it (i.e. graphic / scenes as opposed to ping sensual references)? I don't want to waste my money on something I would be sure to throw away. Thanks for the help!