Rule 34 Dev - 1boy 1girl absurdres armpits assertive_female blush breasts competition_swimsuit covered_navel expressionless greyscale half-closed_eyes hetero highres k-you_(hikarininare) large_breasts looking_at_viewer lying male_swimwear monochrome nintendo on_back one-piece_swimsuit outstretched_arms pyra_(pro_swimmer)_(xenoblade) pyra_(xenoblade) rex_(cloud_sea_shark)_(xenoblade) rex_(xenoblade) short_hair simple_background skin_tight sweatdrop swim_trunks swimsuit white_background xenoblade_chronicles_(series) xenoblade_chronicles_2|9743720220