Is it normal i am attracted to my aunt's legs

Since the age of 17 i was attracted to my uncle's wife legs and feet, she always been taking care of her legs and feet and she knew what exactly suited them, she kept them very shiney and smooth .... she is actually my uncle's wife... till now i feel the same towards her legs ...now she is 59 and im 40 and i am dying to just touch her lovely legs ..... during the past period i felt that she noticed my attraction and i thought that she enjoyed teasing me i don't know if that was true or it is just my imagination .... i am afraid of declaring my feelings to her, as this might blow everything off even my relation with my uncle .... on the other hand i tried to leave her some cluse that might help me ... i licked her shoes whenever i had the chance ... i even masturbated with her sandals once or twice i kissed and licked her nylons whenever i found them and intentionally left them in another order than the way i found them ...just to make her notice that someone was messing up with them, but again without success ... i tried to show her that i am staring on her legs and feet .... but i don know if it made my situation clear of not .... please help me ... i want to have the chance to kiss those legs and lick them and i dont know how to make the move ....