Thinking about trying diapers

Ok i have been thinking about trying to wear diapers for sometime now but the problem is that i can never find them big enough to fit me and be comfortable. I am not looking to poop in them i am just looking at using them in conjunction with my catheter play that i do on an occasion. I am 6'2" weigh approximately 380lbs and have a waist of 60". I got a sample of bariatric diapers from NorthShore once i think but to me it felt like they were just to small anf slid down on me some of the time. I was just curious as to what it woud be like to wear a diaper for fun. Because who the h#@@ knows i may have to wear them for real one day. Thanks for any help that can be given.

I wear for fun (pee fetish) and love them. Hope you can find some you feel comfortable in. If they help you enjoy a kink, it will be worth searching for a brand/model that is comfortable.