" We need to do something about this now. There are things we can do.” My hand curled into fists. “Like what?” “Well, the jumping jacks for … an hour or so should do it” His gaze dropped. Something flickered in his eyes. “You may want to change first.” The urge to cover myself was strong, but I resisted. I wasn’t going to cower from him. “I’m not doing jumping jacks for an hour.” “Then you could run around the house, up and down the stairs.” He paused, his smug grin turning wicked as his eyes met mine. “We could always have sex. I hear that uses up a lot of energy.” My mouth dropped open. "

― Jennifer L. Armentrout