Barbie Doll

There are many techniques I use to masturbate with but the one that arouses me the most is the use of a Barbie doll .I use the doll to fondle and stroke my cock.I place her hands on my cock and slowly pump myself with her or I spread her legs and do the same.I love to wear pantyhose and high heels also while I'm masturbating sometimes and using the doll to fondle myself I find my orgasms are more intense.More than often I will ejaculate my sperm on the doll and not clean it off .stange as it may seem, finding the doll covered with old sperm stains is a high turn on.needless to say I have other objects that are quite stained too Pantyhose ,panties,boxer shorts .
Maybe this is an obsession an erotic one for sure.