Girlfriend wants to kiss all the time

Hi guys, my girlfriend and I have Been together for 8 months now and everything is great, except that she is always interrupting to kiss me. For example when I'm playing video games, cooking dinner, watching a movie, chilling with friends, driving when we're stopped at traffic lights, pretty much doing anything she insists on kissing every two minutes. Now don't get me wrong, I enjoy kissing her, but it gets irritating when I can't even have a drink of water without her coming in between the glass and my lips. I have tried to tell her to stop, particularly when I'm eating or drinking, but not in regards to much else. I have found myself lately pulling away from her when she does this which is upsetting her. Basically I need advice on how to tell her, I love kissing her, but don't enjoy it when it's interrupting something I'm doing?
Thanks

Maybe get her one of those massive collars that the vets give to dogs to stop them scratching themselves, or otherwise eat an onion each day to repel her (Sorry, just joking)

On the plus side... She obviously likes you a lot (yay)
I think talking it through with her further is the only solution.
Can't help thinking how lucky you are though!

Some girls just like to kiss and be wanted, get used to it