Is this weird?

I know he's mine so I don't feel insecure about doing this but
Sometimes when we're together I see a girl with big booty cheeks and I go "Cheekies" to him. and he understands that I mean there's a girl with some fine booty cheeks nearby.

Sometimes we look at booty cheeks in the car while we eat. And we rate them.
It's creepy if a dude stares at you.
But a dude and his gf? We look normal. No one suspect a thing