Thanks to my parents' remarriage, I suddenly got two stepsisters! They're so weak-willed that they can't say no. Spotting their weakness, I boldly asked for "deep throat practice." They couldn't refuse, so they let me go for it. I pounded their throats with my hard-on until they begged for more... Their masochism blossomed! Now I can do more than just deep throating. I pushed my saliva-coated cock into their vaginas, and even better, I could enjoy both at the same time! It's the best! I can't stop!