How do you know heavy cream won't cause you to gain weight?
Seems you have a defeatist attitude going into this gain thing.
All you can do is try and see what happens.

I have been obese long enough that it feels normal.
To me it feels like things like chairs have gotten smaller,getting into a car is a chore/workout.
Tying your shoes for example I have to sit on my bed and throw one leg up kind of to the side to tie my shoes. Doing it the way thin people do isn't a choice and its not happening with my belly in the way.

Interesting take and sounds like maybe something you can do to appease your desire to look bigger.
Aren't clothes awfully lumpy and hot ?
I have a guy friend that is a drag performer and he makes his figure look female by using foam padding. He said there are you tube videos showing how to make stuff like that.
How much different would it be to make padding to make you look bigger?
Just a thought.

Exactly johnxyz makes a good point.
Always be honest with your man don't hide things or lie about things.
That way he knows where you stand and you don't become the neighborhood skank everybody talks about.

What respectable fat girl doesn't keep her pantry well stocked LOLOL

Being deceitful and hiding things and not being honest with him now and you are not even married yet?
Thats not a healthy way to be in a relationship.
If he figures out you have been lying to him what does that say about you?
You think he will trust you after that?
Trust is the basis of a lasting honest relationship.

Over eating, grazing all weekend,binge eating /stuffing.

If your man isn't working and contributing to the bank account why is he on there.?
One tip I can give is never have a joint bank account with anyone.
I speak from experience.

Very interesting topic.
I hope I'm not being intrusive to you guys

I recall mixing vanilla ice cream a boost plus drink and the heavy cream but I don't think I used a measuring cup or anything like that.
I hate weight gain powder so I never used that.
30 lbs in 2 and a half months roughly was a substantial gain.
People noticed it.