Help with my cats behavior

My cats got fixed last Thursday, ever since they have been super affectionate towards each other. They will cuddle with one another and if you try to take them apart they will growl until you put them back. It's gotten to the point if you even sit down they will both come up and cuddle on top of you. I don't really know what to do they won't leave each other alone and it's weirding me out. If you know what to do PLEASE help. Here is a picture of them from yesterday:

That's normal behavior. Without the surge of hormones to promote aggression more meaningful relationships can form. Take this time to deepen your relationship with your cats and enjoy the affection.

I don't really understand why this cuddly and affectionate behavior is weirding you out. It's the sweetest thing, and you should let them be. Cats just being cats... really good cats.