It's Okay! She's My Stepdaughter 1 (2009)

Sinopsis

Don't worry, that pretty young thing that man is fucking is not his daughter, but his perverted step daughter. Kaci Starr needs some help with her "homework". Amy Starz asks her step-dad to take her to her doctor's appointment, then she fucks the both of them in his office! Shelby Angel the cheerleader brings her friend Sindee Jennings over to share her step-dad's huge cock! Finally, once her mother leaves the house, Crissy Moon shows her step-dad just what a naughty girl she is!