My stepsis took my virginity

My girlfriend dumped me cuz I couldn`t lick her pussy right and my sista 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 thru 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!