its like a misunderstanding
http://www.mangago.me/read-manga/faded_first_love/
http://www.mangago.me/read-manga/i_seriously_can_t_believe_you/
http://www.mangago.me/read-manga/fukou_kun_wa_kiss_suru_shika_nai/ (This one it’s more like because of a misunderstanding rather than a joke)
Kind of a joke ore more like a spontaneous whim
http://www.mangago.me/read-manga/gosan_no_heart/
http://www.mangago.me/read-manga/seven_days/
bl’s where one of the characters gets with the other character as a joke but actually falls in love with them