![1boy :o anus ass bare_shoulders bike_shorts bike_shorts_pull blue_eyes blue_hair gloves hacka_doll hacka_doll_3 highres irony-san long_hair looking_at_viewer looking_back male_focus otoko_no_ko penis perineum solo testicles tucking rating:e score:12 post #2170802](/cdn_image/preview/70/56/70566567c4070cf55731c990297cee09.jpg)
When a boy tucks his penis behind his legs to give the appearance of a smooth front, usually done by pushing the penis back between his thighs. Commonly done with otoko no ko, though this is usually seen from the back for the opposite appeal - rather than conceal it from the viewer, the fetish is to see their penis in full while either looking at their ass or doing various sexual positions that require view of such.