At the sound of Lisa's scream Ianto stops staring in shock at Jack, shoves himself to his feet and runs across the water tower pool to find her.

Lisa falls back against the wall and slumps against it. Gwen and Owen watch her, panting, hardly believing they're out of danger.

"What the hell was that?" Gwen says.

"What?"

"Snogging me!"

"Last kiss for the condemned man! Little embarrassing given we haven't been killed." He sees her disbelieving look. "What?! It's not like I fancy you or anything."

"I was on top of you. I could feel your hard-on."

"Yeah, well, you didn't exactly struggle, did you?"

Ianto runs down the stairs and knees in front of Lisa, touching her wounded belly.

"It was kill or be killed," Owen says quickly.

"Owen's right. There was no choice."

Ianto is still gasping for breath, looking at his lover in disbelief. He stumbles to his feet when her eyes open.