(Images by Mike Ruiz)

With those eye-popping colors — and popped muscles — it's no surprise photographer Mike Ruiz is behind the Heartthrobs and Hounds 2018 Calendar. Keep reading for more info ...

The Heartthrobs and Hounds 2018 Calendar (with January 2019 as a bonus) includes 13 sizzling shots of musclestuds with cute K9s, and while it's a visual vacation, proceeds from the sale of the calendar will benefit the animal charities Fur Friends in Need and Lilo's Promise.

Ruiz says of his work:

I admire men who have sculpted their bodies into works of art. It takes incredible skill and knowledge to form human tissue to near perfection.  Photographing their work is quite gratifying to me.

Also, they're hot.

The calendar is $19.99 — get yours here or here.