Keep in mind I'm no doctor so take any "medical" advice with a huge grain of salt...! That said I believe gaining weight (and visceral fat), especially around your vital organs is never really possible in a complete healthy way. Only was around this I can think of is testing a sumo wrestler diet and exercise routine. They somehow manage to keep their dangerous visceral fat realitivley low and rather store subcutaneous fat right underneath their skin, rather than around their vital organs. Many people actually prefer soft fluffy subcutaneous fat look/feel wise. See this video for more info: https://youtu.be/UT7HdGFBP-s Other more healthy ways would be bloating and/or occasional stuffing that does not lead to any weight gain. Here goes the same rule as with anything on in life: Don't overdo it! There's no point in ruining your digestive system just for a couple "fun" hours. Also be careful when doing water/soda bloats as there is a real risk of water poisoning when you drink too much water in a short timespan! Last option that comes to mind would be padding for roleplay/fantasy purposes so anything as simple as a cushion stuffed underneath her clothes or more realistic fat suits. Although as someone with the same fetish I get that this last option might not be very satisfying...

>>61755 Thank you very much, I already watched the video but you will agree that I don't think my girl wants to take a sumo class hahahahaha. I am looking for something like a stomach and bowel stretching that can increase their size in a healthy way and that only makes her belly look bigger. I have seen that it can be achieved with water consumption, but also as you say, it can cause harm, I have also seen that of performing an enema but I don't know if I am very willing to do it, besides I don't know what those devices are called to be able to perform the enema and I have zero information about them.