Colin just shook his head and didn't answer when she asked if there were more pictures.
The truth was he'd been too busy trying to keep breathing and get away to think much about tickling back - of course now that she'd put the idea in his head and he was, for the moment, effectively stuck beneath her he might as well.
And between huge guffaws of laughter he managed to pull his hands up from his sides and dive towards her sides tickling as best he could.