I'm not that big on dirty talk, it's not a must that's for sure. Personally if there's a lot of it I sometimes wonder if it's a bit 'acted' or 'fake'. My ego doesn't need stroking, but something else does
If she is going to talk to me it should be like a GPS - Go down here, enter tunnel now, quicken pace, slow down, etc as I swear each women is different and a little direction sometimes can't hurt. Plus I think there are better things a woman can do with her mouth. So would the words "gag gag slurp slurp" count as dirty talk?