Married but curious

I am 38 Mwf and married. Marriage is ok but have always been curious about BBC. I see guys at the gym I work out at that make me even more curious but am afraid to try anything. I am afraid my husband may find out and do not want him to know.
if u dont want him to know he doesn't have to..besides its about your pleasure..and bbc is the ultimate answer to all your prayers of passion/lust/and great great sex