Nothing says "love" from your two year old more than sharing a piece of half chewed up chocolate. He even brought it to me and said "Wuv you mama...share?"
How do you say no to that? You don't. So, you mentally block out where that chocolate has been, and you let your son feed it to you. And you chew it, and swallow it, and tell your child you love him, too. And he wipes his chocolately hands and face on your shirt. :)