Uncovered my sister's secret profession in the adult entertainment industry

After stumbling upon some suspicious files on her computer, I confronted my sister about her secret profession. It turns out, she's been a popular porn star in the industry, with a specialty in anal and blowjobs. Shocked but intrigued, I decided to join her for a day of filming. I watched as she expertly pleasured her co-star, taking his big cock deep into her mouth. Then, she skillfully fucked him in every position, leaving him moaning in pleasure. The intense anal action had me in a frenzy, as she took his fat dick without even flinching. Finally, she let him cover her face in cum, before eagerly licking it off. It was the hottest day of my life, and I couldn't help but crave more of my sister's amazing skills.