![1boy 1girl armpits arms_up bare_shoulders bed_sheet between_breasts bike_shorts black_gloves black_headwear black_legwear black_neckwear black_shorts black_skirt blurry blurry_background blush braid breasts brown_hair buckle censored cleavage closed_eyes clothed_female_nude_male commentary_request cum cum_in_pussy depth_of_field dutch_angle ejaculation_under_clothes elbow_gloves frilled_skirt frills girl_on_top gloves hat hetero high-waist_skirt highres idolmaster idolmaster_shiny_colors indoors kuwayama_chiyuki large_breasts long_hair lying mosaic_censoring necktie necktie_between_breasts no_panties nose_blush nude on_back on_bed open_mouth overflow peaked_cap penis pillow pubic_hair pussy reverse_upright_straddle saliva sex shirt shorts shorts_under_skirt side_braid skirt skirt_lift sleeveless sleeveless_shirt solo_focus spread_legs synchroaki testicles thighhighs tongue tongue_out torn_bike_shorts torn_clothes torso_grab vaginal white_shirt rating:e score:36 post #3444163](/cdn_image/preview/0e/f1/0ef153739a7de74ba15934f7c1ff4dba.jpg)
A sex position for two characters sitting upright in which the receiving partner sits on or astride the penetrating partner's lap, getting penetrated from behind. Compare to upright straddle, in which the participants face each other. If the penetrating partner is lying on his or her back, this becomes the reverse cowgirl position.