The Mirror Mirror star sheds her clothes in new movie Stuck in Love, in which she plays a teenager who seeks out one-night stands, and Collins reveals the racy scenes left her famous father feeling "awkward".
She tells Omg.yahoo.com, "I've just turned 24 but I'll always be their (my parents') little girl. My dad started as an actor. It's close to his heart. It excites him to see me taking on roles about growing up but, yeah, kissing scenes aren't easy for him. And in Stuck In Love, I take my top off, so that was awkward."