9-1-1’s Oliver Stark is ready for his character, Buck, to return bigger, badder, and more bisexual than ever for the ninth season of the fan-favorite procedural. Taking to social media to share a story in celebration of Bisexual Awareness Day (which is today, September 23), the actor filmed a steamy video of himself getting a sweat in on the treadmill while addressing his Instagram followers. Sharing his gratitude for the bisexual community and how they’ve embraced his firefighting character, Stark said,