http://www.mangago.me/read-manga/seishun_kinema/
this one maybe? the uke has a complex about his penis and it's sometimes censored with a fish
Thank you! A friend asked me about it and I totally forgot what it was called
You’re welcome! (⌒▽⌒) Also, if you like that you’ll sure to like these with similar theme:
http://www.mangago.me/read-manga/akai_ringo_no_nakami_jijou/
http://www.mangago.me/read-manga/ore_no_kanbotsu_chikubi_ga_senpai_no_shitapi_de_tachimashita/
http://www.mangago.me/read-manga/go_houbi_chikubi/
http://www.mangago.me/read-manga/hatsukoi_encounter/
http://www.mangago.me/read-manga/hitotsu_futatsu_himitsu/
I think the story was centered around an uke who had a really small dick?? And the seme told him he'd help him make it bigger? All I remember is that they censored the dicks with a fish