Like a tidal wave
http://www.mangago.me/read-manga/like_a_tidal_wave_from_pheromone_shower/
Itoshi no nekkoke
http://www.mangago.me/read-manga/itoshi_no_nekokke/?yR3t
This one
http://www.mangago.me/read-manga/wagging_the_tail/
And maybe this one
http://www.mangago.me/read-manga/playtime_with_hakdo/?0dgC
I can't remember for sure though
http://www.mangago.me/read-manga/like_a_tidal_wave_from_pheromone_shower/
http://www.mangago.me/read-manga/suki_na_hito_hodo/
http://www.mangago.me/read-manga/happy_shitty_life/
http://www.mangago.me/read-manga/rise_of_moonsoo/
http://www.mangago.me/read-manga/wagging_the_tail/
http://www.mangago.me/read-manga/dark_heaven/?ir2t
Switch
http://www.mangago.me/read-manga/food_chain/
http://www.mangago.me/read-manga/dark_heaven/?qiVX
http://www.mangago.me/read-manga/neko_x_neko/
http://www.mangago.me/read-manga/satou_kun_ni_wa_kanawanai_sachimo/
http://www.mangago.me/read-manga/love_replica/
http://www.mangago.me/read-manga/haru_wo_daite_ita/
http://www.mangago.me/read-manga/why_is_it_you/
http://www.mangago.me/read-manga/saitou_kun_to_190_cm_no_otoko_2/
http://www.mangago.me/read-manga/sono_kuchibiru_ni_yoru_no_tsuyu/
Yaoi with a switch couple pleeaase