I didn't realise what a big cock my step-daddy had. I did my best to gobble it all down but it's just so big that it made me gag. That didn't stop me! I kept sucking even though spit was dripping from my mouth all over that big cock. I want to be a good step-daughter after all so I sucked the cum out of his cock and made sure I swallowed it all up like a good girl.