Hi Kemie,
Nothing in life is risk-free, but kissing is pretty safe. You could catch a cold or glandular fever (which is pretty unpleasant, but IIRC you're likely to have been exposed already). Cold sores are a possibility too, of course.
Fingering probably carries more risk as it's possible to transfer some infections via the hands. If they've washed their hands since touching their genital area, you'll be ok.