I saw mommy kissing santa claus

I saw mommy kissing santa claus
Underneath the mistletoe last night.
She didn't see me creep
Down the stairs to have a peep
She thought that i was tucked
Up in my bedroom fast asleep.
Then, i saw mommy tickle santa claus
Underneath his beard so snowy white
Oh, what a laugh it would have been
If daddy had only seen
Mommy kissing santa claus last night.