I've been downgraded by a 2 year old

Ryan is such a loveable, kissable boy! And up until a couple days ago would spontaneously kiss me! It was cute! He still kisses me but just in a different way. Now he puts his hand over my mouth and kisses me on the cheek. What's up with that? Is he worried about germs already? Jeepers! He must have got that from big brother Eddie who hasn't let us kiss him in years for fear we would "share germs". So my two year old has downgraded me to a kiss on the cheek and my four year old will permit me to kiss him on the top of the head or his arm. Well, there's still Kevin and so far, he is a regular smoocher!