My bf is in denial

So my bf is in denial that his ass is soft. I’m talking about newborn baby ass soft. It feels like a freaking pillow. I told him whatever lotion his parents used on him as a baby is fantastic. He thinks I’m weird every time I touch his ass and squeeze. I can’t help it honestly. One time I smacked it and his ass jiggled. He looked at me like did you just smack my ass. I’m like yes but I was about to play patty cake with it too. He laughs at my weirdness.