Rooftop: http://www.mangago.me/read-manga/dash/
http://www.mangago.me/read-manga/sou_itte_kimi_wa_warau/
Outdoor: http://www.mangago.me/read-manga/doutei_hitsuji_to_abazure_ookami/
http://www.mangago.me/read-manga/koushuu_toilet_danshi_hajimete_no_aokan/
http://www.mangago.me/read-manga/taiyou_to_himitsu_secret_and_sun/
http://www.mangago.me/read-manga/razoku_no_hanayome/
http://www.mangago.me/read-manga/surf_junkie/
http://www.mangago.me/read-manga/baby_bitch/
Try public sex tag
http://www.mangago.me/tag/public%20sex/
i actually divided them into two lately
http://www.mangago.me/people/tag/49344/public+sex/
http://www.mangago.me/people/tag/49344/outdoor+sex/
also, since this is a personal tag collection you will see my notes/review on it.
any yaoi with sex on the rooftop and outdoor ?? tell me please , i want read it now (>///<)