My boys sometimes hump (17 months + 6 months, both neutered). I just let them get on with it. It honestly does not bother me, they get a toy or blanket sometimes and give it a little love. They are well behaved and don't do it that often so for me its just not an issue.
__________________ Indy, Benjamin and Malachi   There is no psychiatrist in the world like a puppy licking your face- Ben Williams |