Responses
I'm not sure, but it fits the second part of your description
http://www.mangago.me/read-manga/recipe_no_oujisama/
yeah its this one, thank you so much(⌒▽⌒)
the uke were introverted and he liked to paint ad the seme had many friends(they werent introduced in manga though) but he preferred to hang out with uke, and they both modeled in art classes and got some money from it, i think, and they once modeled together and there were some fujoshi girls and they were giggling to them, and they both were virgins, or at least the uke were. it were really cute and fluffy and mostly shounen-ai. if you know this please share ur knowledge(づ￣ ³￣)づ