Ok..my 5yo cat Jinx has started to hump all of my things..blankets, dressing gowns..anything soft! He has never done this..ever. when my baby was born he use to wee on all his stuff and was very jealous. He stopped that months ago but this is doing my head in. Yesterday id just washed the couch throw and dried them and he climbs into the basket and humped them in the basket..this morning i took my dressing gown off and he jumped straight up and humped it. I dont know what to do but im not impressed with this. Any advice? X