Male Dogs Humping

[Sue & Willy Babe]

Willson was playing with Bell yesterday then he tries to go and do the the male thing anyone else's dog doing that??? Willy is Neutered I just tell him Not Appropriate, is that also a sign of Dominance Bell is a Female dog
Also he is 6 months old and 45 pounds we are soo proud of him I spray pam on the bottom of his paws and the snow balls come off better