Gwen felt a little flutter of excitement in her stomach, the same world-changing thrill she always felt when in the presence of something alien to Earth. No matter what the danger, the buzz was always there.

There had been times when she had enjoyed the kick that danger brought: the sheer, unadulterated joy of facing death or injury and surviving it. That sensation could become addictive. She had never seen herself as a thrill-seeker, but she could understand the attraction. Facing down death, beating it, was better than sex. Not that she would ever tell Rhys that, but it did go some way to explain why Captain Jack Harkness was so incredibly hot.