I ask my Grandpa for the money to buy a new phone. He agrees, but only one condition - I must first suck my toes! I'm disgusted at first, I can't believe my Grandpa would suggest something so dirty and wrong...but reluctantly agree as I really need a new phone. I begin to suck my toes, noticing Grandpa's cock starting to get hard. What a dirty pervert! I begin shyly but to my surprise, I start to really enjoy what I'm doing. It's even turning me on seeing the effect it's having on Grandpa, his hard cock throbbing to get out of his pants. I've never been this horny before in my life, I can't help myself and start to strip out of my clothes. I bet you weren't expecting this, were you Grandpa? ;) I beg my Grandpa to masturbate with me, I know it's wrong but it just feels so good. It turns me on so much having him watch, and seeing his big fat cock throbbing just for me. I beg him to cum with me as my pussy explodes harder than ever before. I can't believe we just did that Grandpa! But don't worry, I promise it'll be our little secret ;)