Young Argentinian girlfriend betrays me by filming a sex tape with my buddy

As any average guy, I've got a smoking hot girlfriend who seems to be perfect. But as it turns out, she's got some secrets that she's not willing to share with me. One day, I found her recording a sex tape with my best friend right in my room! What a betrayal! But instead of getting mad, I decided to join them and make a hot threesome. My girl and my buddy were already naked, and she was bending over, showing her big ass to him. He was about to shove his dick in her juicy ass. I couldn't miss such an amazing action, so I took off my pants and joined the fun. The camera was recording every move, and I can't wait to see the final video. Hope my girl won't get mad at me.