Responses
these have chubby character:
http://www.mangago.zone/read-manga/ai_no_gebokutachi/ (ch3, though he loses weight for a bit)
http://www.mangago.zone/read-manga/dame_bl/mh/c011/
http://www.mangago.zone/read-manga/sweet_bitter_candy/ (use to be chubby)
i'm look for yaoi manga like this one http://www.mangago.zone/read-manga/hoppe_ni_himawari/