LARGE fatty things (?)

my friend that i got jericho from has a cat, ziggy, that is almost a year now, they got him neutered about 3 months back, he has gained a bunnnch of weight since then but now he has developed 2 fatty things on either said of his belly. they feel just like a fatty cyst but they are both the exact same size on exact opposite sides of each other.
he acts fine, eats fine, plays fine, but they are starting to worry her because they are so large. i told her id ask all my favorite experts since her DH decided hed rather play xbox last week and skip the vet appointment.

any ideas!?

Sounds like the typical "fat pouch" out kitties get. Pipsqueak has two hanging down under his stomach . But if they are actual palpable lumps then I would get it looked at. The fact that she says there are two and they are identical, I wouldn't worry, it is probably a fat blob

I took my Hyperthyroid girl in because she had a bunch of "bigger bumps" on her tummy and I was afraid they were tumors or something. She had gained a lot of weight and he said they are just "fatty pockets". We changed her medicine and she has lost weight and the fatty pockets have gone down. (Note: I am unsure if (lol) "Fatty Pockets" is a medical term, might have been my hilarious vet's sense of humor).

Warmly,

Julie O' and the Puddy-Tats