Mark has a secret, and it's threatening to ruin everything... My body pulses every time I see him. Thoughts of the dirty, secret things we've been up to rush through my mind and consume me. I'm in a constant state of arousal, always waiting for his next command. He's more than forbidden, which just makes me want him more. But Mark has a past, and with it comes a secret that has me questioning everything we've been up to... can we get through this or will this tear us apart? This is part 3 of the Secrets of Daddy's Best Friend series.