Radok's known sexual quirk; You like sniffing, a lot. You like sniff used underwear both male and females (overall you have fetish for body scents). Thanks to this fetish (and easy source to draw interest) you have blindsense to 60'ft based on scent and your able track/follow scent trails if their fresh (they fade out very fast). In return though intense disgusting scents can cause you become nauseated (DC is 20 fort save for sewage example and grows higher in worser scents). You can avoid this by using a gas mask or such but it also neutralizes your heightened sense.