These are four of the Maxis Teen undies converted into Warlokk's bodyshape sizes. All four are available in all sizes. This one is really Set 1 this time; the last time I uploaded set 2 on accident. Whoops.
The meshes can be found in a few places:
Teen A MeshesTeen B MeshesTeen C MeshesTeen D MeshesEnjoy! The rest of them will be coming soon.