If a 45 year old man asked you if you'd like to see his 7 yr old nephew dance?

naked, via online, would you be concerned enough to call Child Services and have this man reported? What if this man was your boyfriend? What if he told you he let the boy stay overnight almost every night, ( so his sister and his bro in law can go party and have ) lived in his mother's home, didn't work, and took bubble baths in the tub with the youngster. Is it me? or is this sound ok and im just a prude? What if this man - you come to find out later after breaking up with him- is into SMBD and has several lovers who knew nothing about each other till just recently? ( and all got together to compare shocking notes) Is it me? Should I be concerned or Mind my own business? I am concerned btw.