As your step mother I have been draining your cock with my hand on a weekly basis in an effort to keep you more focused on your education. But I am starting to get more adventurous, to crave your dick more so I put it in my mouth as well and talking to you about how I am one day going to want to fuck that cock of yours. I jerk you to completion, you cum a bit in my mouth and I play with it. You love your step mom so, don't you?