I really like the smell and taste of many vaginas but there are those few that can sometimes make my stomach turn abit.
Although some of the reasons mention could contribute to the taste and smell I found out the sweet can cause effect to. if a girl has folds down there then sweet gets traped and can begin to smell too.
Here is a usefull trick: Use some flavored lub durring oral.
It works. all you will tates and smell is the lub.
Here are 2 favorite lubs I use.
http://amoroustoys.com/catalog...._id=212 
http://amoroustoys.com/catalog...._id=211
Good Luck.
I shop at
www.amoroustoys.com for all my sex toy needs.