Yaoi with two semes that have a fight on who should bottom or become uke?

http://www.mangago.me/read-manga/t_x_s/

http://www.mangago.me/read-manga/t_x_s/

http://www.mangago.me/read-manga/puchitto_hajiketa/
they dont exactly fight.... but both of them wanted to be the seme

http://www.mangago.me/read-manga/ore_tachi_no_kijou_jitai/
ahahahahahahahahahaa

http://www.mangago.me/read-manga/mazu_wa_ubaiai/

http://www.mangago.me/read-manga/docchi_mo_docchi/ (Dropped out)

http://www.mangago.me/home/mangalist/55115/