"So you've gained a little weight; it happens to all goddesses of your age. sooner or later"
Kanako's attempts at comfort weren't helping. Sanae decided to step in.
"Look at it this way, you're a successful goddess with a whole congregation of new faithful visiting and donating to us every day and the temple is finally all repaired and looking better than ever! "
The shrine maiden grasped Suwako's hand in a comforting manner as she looked into her fuller face and reassured her looks. Most of that extra weight went straight to her chest anyway which was something most girls would never dream of complaining about.
She looked at her shyly through her lashes, which from where she was sitting, revealed to her the goddess' developing double chin. With even that gentle but honest reassurance, her appetite was renewed as she dug into the next basket of offerings, not being able to wait until they were properly laid out before her.
Summer festivals in particular were the highlight event of the season. As the days grew hotter and longer, Suwako found her outfits becoming shorter and more revealing. After the midday ceremony was done, she was quick to tear off the stifling outfit and ran out to her private koi pond where she sat in only her hat and panties with a small face towel to shield over her gargantuan boobs.
All her outfits cut into her belly, the extra support they tried to provide forcing a roll to droop over the elastic. Much of this was camoflaged by the sheer size of each enormous breast which was now nearly double the size of her own head. They jiggled as she raised a popsicle to her eager mouth and began to feast on the embodiment of the winter she longed to feel against her pale skin.
The weeks continued to pass and her snacking continued well towards the end of summer and beyond it. Suwako had grown positively portly by this point which shocked quite a few of Gensokyo's more prolific residents. Their congregation only continued to show their devotion in spite of their Goddess' quite obvious changes who smiled and smirked at the fact that their prayers and tithes were certainly agreeing with her new form. Suwako bowed low at the end of each ceremony, beaming with all the self assurance she had when she was a much smaller deity as she prepared herself for that evening's dinner party.
Suwako overheard the kappa Nitori going over her latest scientific theory with a clearly bored looking Reimu who quickly made an excuse to leave as she approached the portly goddess. She eyed her new assets greedily as she tried to casually slide her intentions into the conversation."
"So, Sanae tells me that business has been booming for you since you...ah...invested in melon farming. I've been thinking about adding a pond to the shrine myself to try and attract more donations but I really wasn't sure if it was a good deal..."
Suwako merely smiled as she hefted her palms atop her enormous breasts knowingly.
"Did I ever tell you about Goldfish Theory...?"