Gave stepsis more sex practice

My girlfriend dumped me cuz I couldn't lick her pussy right and my stepsister said I should just practice more, on her. I was as shocked as I was aroused, what a slut to offer her stepbrother something like that! Of course I said YES cuz she's kinda hot and agreed to guide me through the process, and once we tried it we just couldn't stop. Next day she gave me my first ever blowjob and then took my virginity. Now we fuck all the time and I film it all!