The Penthouse Pack, a new downloadable content pack for last year's Saints Row: The Third, stars Justine Joli (2008 Penthouse Pet of the year runner-up), Ryan Keely (2011 Penthouse Pet of the year runner-up), Heather Vandeven (2007 Penthouse Pet of the year), and Nikki Benz (2011 Penthouse Pet of the year) - all of which you can see (in digital form) in this very video.
Available now, the Penthouse Pack costs about $5 on your platform of choice.
From the addon's description on Steam:
Add these well-dressed Pets to your gang and call them into combat anytime to do battle against the Syndicate. For the first time in your life, when you call Penthouse Pets, they'll actually answer.