so its best to wear with clothes that have all-morphs & better weights! works 100% fine with skintight clothing and SOME 3D weight compatible clothing.
*does cause clipping of the mesh of some clothing that were not made with bigger chest morphs. but any that don't rest on top of the chest will disappear inside the sim *any necklaces or tops or hair with parts that rest on the upper chest of the boobs will rise over them and glitch a bit as u scale them bigger you CAN still wear necklaces. get ready for any flat chested sims to walk around with just a little bit more umph.
these DO make your newly added sims in cas and townie + NPC sims boobs slightly bigger by default because it is a default replacement slider.