By Kayla Kibbe As a sex-haver with so little athletic ambition that reverse cowgirl is outside my physical comfort zone, I’ve always admired the strength, endurance and often downright acrobatic abilities porn stars bring to the act. Still, I’ve never exactly thought of porn as a sport, but based on the extreme sport-level injuries one industry professional claims to have sustained during her time in front of the camera, it seems like it might as well be. During a recent appearance on the Plug Talk Podcast, adult movie star Adriana Chechik opened up about the toll porn acting has taken on her …