My boyfriend thinks that he makes our dog horny and it's really weird cause every time that my boyfriend sits down on the couch or anything our 85lbs 11 month puppy will try to hump just the other day my boyfriend was just sitting on the couch minding his own business when my dog went up to him and starting humping the air... It was really funny but he doesn't think it is cause my other dog would do the same thing to him... he was a lot smaller than the dog we have right know...

so anyways can this be true or why does my dog try to hump him a lot...?