Requires Wretched Lifestyle. 

Your Wretched Unnatural Musk gives you power. It's a field created by all (bacterial) living things inside and on you. It surrounds you, penetrates you, and binds the galaxy together. 
Your unnatural swamp ass and BO and various other wretched smells cause debilitating vomiting and gagging. 

All non-construct characters within 5FT of you must succeed a CON (DC5+character level) saving throw or suffer profuse vomiting, gagging, and cannot take an action this turn.
E.G. Level 10 Fighter Con save = 5 +10 (CON 15 saving throw) 

You take 1d4 damage from water and soap.