C.J. my new yorkie he is 7 1/2 weeks old is being very aggressive

during play time with Taffy. He is growling, biting and making Taffy yipe and he is also a very horn dog.
Please tell me how to stop this poor Taffy loves to play with him until he get really mad then he gets to aggressive.
I picked him up and he was so railed up he tried to bite my mouth and chin. I shook him by the scruff of his neck and said no then he kissed me instead.
Please help.. I have never had a pup or dog this bossey .
Starlene Taffy

Baby

and C. J. (the brat)