Yes, it’s recommended. Boob lover’s paradise. The only downside is that they’re usually heavy and don’t clean themselves, so make sure you find a doll that works for you. It depends on your physical condition and whether you use them for entertainment only or for art/photography. Personally, I would recommend that you alternate between lighter dolls so you don’t wear yourself out. It can be a little uncomfortable at first, just like with any real partner except you’re doing all the work, but once you get used to them, it’s fireworks!