I have tried and tried to do a jeans texture for the a3 catsuit, but failed miserably. If anyone out there knows of a texture for sale / download for realistic jeans on a3 catsuit, please let me know. Would love to get something like the Alexa catsuit textures, made the tight jeans and looked good. If you know of something, please give a shout. thanks.

DAZ has some "Second Skin" textures, that are actually applied to the body of the figure and look like clothes. Aiko should be able to wear V3's second skins (though you might have to attach the maps manually to the legs).

Dunno if V3's catsuit is mapped the same as Aiko's, but you could ask. There are some nice jeans textures for V3's catsuit.

Yes, you have to copy/paste in the Materials Room, and your A3 figure will end up with an unused SkinLeg material in the .cr2 which does nothing and can't be deleted within Poser. But V3 and A3 texture maps are quite compatible Displacement maps can give you a good-looking waistband, pockets, etc.