BJ Alex
Maybe?
http://www.mangago.zone/read-manga/melt_at_night/
http://www.mangago.zone/read-manga/bokura_no_tsuzuki/
http://www.mangago.zone/read-manga/nirameba_koi/
http://www.mangago.zone/read-manga/therapy_game/ (Prequels are good too)
http://www.mangago.zone/read-manga/bbanana_scandal/
http://www.mangago.zone/read-manga/wolf_in_the_house/
http://www.mangago.zone/read-manga/like_a_tidal_wave_from_pheromone_shower/
Maybe On or off (don't let the first chapters trick you haha just continue reading)
kind of specific lol but (character 1 whos blunt and innocent and accidentally says something really sweet without realizing it) x (character 2 whos flustered by character 1) pls im begging u