maybe its just his thing - my two ladies to it to show some love too - we call it bumping heads in our house. it is how cats scent mark but they do also do it as a sign of affection too and wild cats who live in social groups are seen doing exactly this sort of 'kissing' business you describe. we also get the mashing of toes (which is painful) and our youngest kitty often tries to get in bed with me or wake me up in the morning for food by licking my eyelid, stuffing her paws up my nose, farting (yes, farting!) on my head and sticking her cold dribbly nose in my eyeball. that's usually at five in the morning (and she has no concept of days off/lie-ins etc) and she frequently just shouts at us when she has something say (which is a lot!), like : turn the rain off, wake up, i'm back, what are you up to and general converstaion. i have never met such a weird cat in all my life and i thank my lucky stars the other one is relatively normal...x