Dressed Male Doll Inflation

TIP: Dolls with flat welded PVC body (like this male one) easily split at concave seams (armpit, crotch, neck sides) and will not withstand full body weight.

It can help to locally heatstretch the areas above them gently by hairdryer (do NOT aim at that seam!) to reduce seam strain. I.e. slightly expand his chest muscles and (less) bladebone corners, back of the head and perhaps butt (and perhaps very little at crotch) which will also make him look more natural.