looking for

http://www.mangago.zone/read-manga/uso_mitai_na_hanashi_desu_ga_h/
ლ(´ڡ`ლ)


it's an extra, this is the original story, no peeing tho:
http://www.mangago.zone/read-manga/uso_mitai_na_hanashi_desu_ga/

http://www.mangago.zone/home/mangalist/43075/

http://www.mangago.zone/read-manga/shingeki_no_kyojin_dj_fan_service_omegaverse/

Escape Journey has a scene where Nao pisses himself while they are doing it, tho I'm not sure which chapter that was. ;-;