The voice definitely disrupted Cora's rhythm, and the fact that she'd managed to get distracted enough to not notice someone was here...well, it put Cora on edge. Without putting thought into the action, Cora let go of the chin-up bar, dropping to her feet silently before whirling around toward the person.
She didn't recognize them.
Then again, who the hell did she recognize here? She wasn't the most social person, after all. Cora bit her tongue, because Derek would have told her to, and encouraged her to be semi-normal. "No, it's fine. Just surprised me a little." Cora said, in her usual manner, already moving to pick up the chair that she had kicked over and out of the way to get up earlier.
"There's enough room for more than one person to work out."