here is a tag~~
http://www.mangago.zone/tag/threesome/
enjoy reading~~ (●'◡'●)ノ
THREESOMES:
http://www.mangago.zone/read-manga/uchi_wa_futago_de_teippai/
http://www.mangago.zone/read-manga/sefure_jijou_koibito_miman/
http://www.mangago.zone/read-manga/docchi_ni_suru/
http://www.mangago.zone/read-manga/koitomo_triangle/
http://www.mangago.zone/read-manga/satou_kun_ni_wa_kanawanai_sachimo/
http://www.mangago.zone/read-manga/chika_chan_to/
http://www.mangago.zone/read-manga/kuroko_no_basuke_dj_vanilla_shake/ (dj)
http://www.mangago.zone/read-manga/ikenai_otoko/
http://www.mangago.zone/read-manga/ryoute_ni_darling/
http://www.mangago.zone/read-manga/as_you_desire/ (dj)
http://www.mangago.zone/read-manga/free_dj_osananajimi_to_shichakushitsu_ni_iru_to/ (dj)
http://www.mangago.zone/read-manga/gamushara_mob_rape_2_chikan_jigoku_hen_kuroko_no_basuke_dj/ (dj, includes rape)
http://www.mangago.zone/read-manga/kareshi_to_ore_to_ore_no_kouhai/
http://www.mangago.zone/read-manga/free_dj_yurushite_warui_iruka_chan/ (dj)
http://www.mangago.zone/read-manga/yokohama_3p/
http://www.mangago.zone/read-manga/free_dj_gyaku_ni_neko_ni_sarechaimashita/ (dj)
http://www.mangago.zone/read-manga/fukusu_mobure_bl/
http://www.mangago.zone/read-manga/free_dj_zenmon_no_shachi_koumon_no_shachi/ (dj)
http://www.mangago.zone/read-manga/free_dj_otonamuke_free_no_freedom_na_hon/ (dj)
http://www.mangago.zone/read-manga/shingeki_no_kyojin_dj_kare_to_kare_no_renai_jijou/ (dj)
http://www.mangago.zone/read-manga/kuroko_no_basuke_dj_boku_to_issho_ni_kurashimasen_ka_futsukame/ (dj)
http://www.mangago.zone/read-manga/kuroshitsuji_dj_kichiku_moralism/ (dj)
http://www.mangago.zone/read-manga/kodomo_no_oasobi_free_dj/ (dj)
http://www.mangago.zone/read-manga/uta_no_prince_sama_dj_retake/ (dj)
http://www.mangago.zone/read-manga/magi_dj_kami_nomi_zo_shiru/ (dj)
http://www.mangago.zone/read-manga/1305/
http://www.mangago.zone/read-manga/kuroko_no_basuke_dj_houkago_dreamer/ (dj)
http://www.mangago.zone/read-manga/netorare_3p_kaikan_kousoku_play/
http://www.mangago.zone/read-manga/free_dj_happy_day/ (dj)
http://www.mangago.zone/read-manga/shingeki_no_kyojin_dj_reunion/ (dj)
http://www.mangago.zone/read-manga/kuroshitsuji_dj_akai_tsuki/ (dj)
http://www.mangago.zone/read-manga/k_dj_fushimi_sensei_s_infirmary/ (dj)
http://www.mangago.zone/read-manga/osomatsu_san_dj_gomenne_kaa_san/ (dj)
http://www.mangago.zone/read-manga/ryoute_ni_haru_free_dj/ (dj)
http://www.mangago.zone/read-manga/free_dj_futari_no_makoto/ (dj)
http://www.mangago.zone/read-manga/dramatical_murder_dj_kawaii_kara_tabetai/ (dj, also a game)
http://www.mangago.zone/read-manga/kuroko_no_basuke_dj_boku_to_issho_ni_kurashimasen_ka/ (dj)
http://www.mangago.zone/read-manga/yuri_on_ice_dj_take_me_now/ (dj)
http://www.mangago.zone/read-manga/aigan_cinderella/ (josei)
http://www.mangago.zone/read-manga/shingeki_no_kyojin_dj_konna_koto_wa_daretomo_shinai_de/ (dj)
http://www.mangago.zone/read-manga/free_dj_subete_wa_kimi_ga_kawasugiru_sei/ (dj)
http://www.mangago.zone/read-manga/bokura_no_koi_wo_kimi_wa_shiranai/
http://www.mangago.zone/read-manga/shingeki_no_kyojin_dj_toilet_no_levi_sensei/ (dj)
http://www.mangago.zone/read-manga/shingeki_no_kyojin_dj_iwayuru_isshu_no_bakageta_oasobi/ (dj)
http://www.mangago.zone/read-manga/hunter_x_hunter_dj_oko_sama_lunch/ (dj)
http://www.mangago.zone/read-manga/free_dj_trouble_makers/ (dj)
http://www.mangago.zone/read-manga/magi_dj_yoru_wa_kore_kara/ (dj)
http://www.mangago.zone/read-manga/snake_dog_bowl_3_blazblue_dj/ (dj)
http://www.mangago.zone/read-manga/katekyo_hitman_reborn_dj_sensei_oshiete_ageru/ (dj)
For some reason I got into it lately.
(Pls answer :<)