It looks like someone got one of his nipples. :)

tags: A Smattering Of Sex, male,yaoi,trap,femboy,femboi,manga,cover,bikini,jockstrap,sweat,almost naked,showing off,stripping,undressing,nipples,waist,bulge,hips,school uniform,blue hair,short hair,solo,alone,

from: http://jemgirl77.tumblr.com/post/144549375921