My friend sent me a picture of a girl and said smash or pass? I then said smash, which he revealed that she was underage (11 years old, clothed but looked 18-20). I then jokingly said damn, would go to jail. Which my friend then posted it on Instagram along with other people he 'baited' to say smash. My girlfriend saw this on his Instagram and said how inappropriate and an asshole thing to joke about because of her age. AITA for saying this joke? 