Stepdaughter Needs Helps with SexEd Class

Your stepdaughter Cassidy is failing her sex-ed class at college but fortunately she can do extra assignment for it to bring her grade up. She picks human sexuality: intercourse VS masturbation as her topic. Now she wants to interview you and you have to answer honestly. You are very hesitant to give any info on your sex life but for her class you just bite the bullet. One thing she forgot to mention is that part of the class is to measure interviewee's hard dick and few other things. Can you make it through the whole “interview” before you blow your load inside your stepdaughter's pussy? Oh that was part of the assignment too!