Cam didn't make any move to initiate it, figuring that just because she asked didn't necessarily mean she wanted to do it right that second. But then she shifted beside him to rise up slightly and she leaned in, so Cam met her part of the way.
For a moment, he just let their lips touch and he didn't make any move to deepen it, wanting to give her a second to decide whether she liked that or not. But after a few seconds, he parted his lips slightly to catch her bottom one between his. A little deeper, but not pushing his luck or her comfort zone.