like Bannin last chapter

where either seme/uke is fat and ugly.

not bara

any1 know one?

Well, even if they are not a 'perfect match', Hada no Ue no Renai Jijou and Sweet Bitter Candy might be worth a look. ^^"

"It's like love is a bonus in your life. Even without it, I'm just fine. I don't feel like pointlessly searching for it. You don't have to make yourself unhappy." (Ookami Shoujo to Kuro Ouji)

"Why does it rain?" - "To create drama." (Drops (Andou Yuki))

These also may not be exactly what you're looking for, but you can try:

Aitsu no Daihonmei - the protagonist is not fat but is supposed to be ugly, I think

Ai no Gebokutachi - Keita (who becomes one of the main characters in Chapter 3) is chubby but not ugly

My Most Beloved One is Still You (oneshot from Usotsuki) - one of the main characters becomes chubby but not ugly

The 'moral' contained in the last story is a bit unfortunate, however:

The non-chubby character states that he loves his sweetheart irregardless of the other's looks...but some of his actions seem to indicate otherwise =...