Shud i let my father lick my feet?

every day i get back from college my father always asks to massage my feet. he dose it for hours sometimes and tickles them which i like, he really takes care of them manicures them. he says he likes the smell of my feet too so sometimes he sniffs them and presses my soles against his face but since may i found my dirty socks behind his pillow on his bed, i asked him why he had them there he said he likes the smell of my feet so he takes the socks to bed. yesterday tho when i got back from the mall my feet and socks were wet (was raining) he said to save the trouble of spongeing him that hed use is tongue but i said that he might catch something. but all day hes bin beggin me to let him lick them clean and that hed do that every day and for hours at a time. there only feet should i let him, i dont want him to catch something bad???