The difficult but cheap way is to use magnets or the morphing tool if you have poser7, the easy but expensive way is to buy the muscle magnet set of DAZ, which makes it possible to add muscle morphs to any kind of clothing.

best regards,

Bopper.

Edit: Oh, FrankT also mentioned morphing clothes of dimension3D, which is the best solution. (I overlooked that!)

-How can you improve things when you don't make mistakes?