Yaay, Angela! Welcome to YorkieTalk! 
I have an eyewitness testimony that YES, Marty is the CUTEST little puppy! And Sully is so gentle with him when they play, it's cute enough to make you cry, hehe!
Suwwy sez dat he is so gwad dat Martee is heer an dey can pway togeder. Dey will be da best of fwends!!!!
You and Brendon are already such wonderful yorkie parents! It's so wonderful to see.....and I'm sure it won't take long until Marty is just as spoiled as Sully, hehe!