I knew it ... post work. What a pitty, i thought there is an "easy" way in DAZ...
Selecting the clothing piece and adding a smoothing modifier to it with the pubic hair (if that's an option. If it's not, then select the character) as the collision item should help. If the clothes are bundled with their own adjustment morphs, which many do, playing with those morphs might help as well. There's also
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that could be added to the clothes suffering the poke through. And provided that the pubic hair has geometry, the mesh grabber plugin for Daz Studio is also an option. There are probably even more options I'm missing here.