I would not.
I think you would open yourself to not so nice people that will try to use you maybe even stalk you.
I have been stalked and its not fun at all
Luckily both of them got a nice long prison sentence.

I tried something like that years ago and it was not enjoyable at all.

My Mom has been the worst hater of me being fat.
The rest of my family got used to it and saw that I was finally happy,healthy and off drugs.
Mom on the other hand grew up in NYC and she is loud and vocal about everything.
Doesn't care what she says to anyone.

Good points MA Beast.
People with the fetish think about it all the time people outside don't.

It seems decision making is something people can't do these days.
Whats the best for you in your mind?
I have no idea what "cutting" is so no help there.
If you are an adult don't worry what others think.

You are an adult and if you want to gain then do it.
There will be comments but you need to stop worrying what they think.

If you are having issues with something and feel lost then stop.
You don't have to act on a fantasy if its causing problems
If she didn't enjoy it don't make her do it.
It isn't healthy for either of you and it opens both of you up to STDs too.
I know sexual fantasies are very strong but you need to be stronger and let them stay a fantasy.

Better have a lot of food or money to buy food.LOLOL.

Dip your toes then its the only way to find out.
How to approach someone about this is to ask.
If this person is your wife or GF then just be honest with them.
Communicate your desires.

When I was an active gainer my belly was pretty much round and sat up high.
I lost 120 lbs to have ankle surgery.
I gained all the weight back over a few years and my belly was jiggly and soft and I developed a double belly that hung down.
Maybe it was because I lost weight and gained it back.
I do love a hanging belly on a guy.