I've been skinny and very very over weight and losing weight was not all that hard but I would rather stay in between chubby and sort of fat.

Just play with them a little and see how he reacts.
Maybe if you are kissing around his chest try putting your mouth on a nipple and see what happens.
It could be something he has never experienced and enjoyable for him.

Ask him if its OK is what I would do.
Let him know how sexy they are to you.

I had a goal of 400 but never got all the way there and stayed around 375 for a few years.
Health problems forced me back down to 220 which was still fat for 5'4".
I did set a goal of 250 last year and I'm back up to 266 and quite happy at this weight.
I feel good and think I look OK for the most part.
I can't say I won't gain more in the future but there are no plans to at the moment.

Ha ha joser you are a real sweetheart.

I tried using a balloon and just let the air out slowly.
Tried to get most of the air into the belly and not the lungs.
It worked to some degree but I probably wasn't doing it right.
Any tip on using balloons?

I have noticed a few GF's that have put on 10-15 pounds here lately and I never say anything other than how great they look which is a true statement.
They always say I'm getting so fat none of my clothes fit anymore then roll their eyes.
Sometimes I'll say well its a great excuse to go shopping then.

A best butt category should be in there too.

Sounds like you have.
I'm sure she has noticed so maybe she will get bigger sizes next time!!

I have a few MtF trans friends that have used it for breast growth.
I seems to have helped them so far.
I don't know what dose they take tho'.