Perhaps Jo had missed the point when he'd given her the 'last night on Earth' speech. Maybe she'd thought they'd had more time then. Maybe she'd thought that he hadn't really meant it and had just been hitting on the only woman under fifty in the vicinity.
She knew better now.
She let out a soft 'mm' of appreciation and returned the kiss. Her fingers tangled themselves up in his hair as she shifted so she was pressed up just a little more closely.