[Cupiko]Four mom friends embark on a desperate drive in a car that won't open, experiencing accidental urination and defecation! ~A story of wives soiling their underwear and seats~

Big breasts (巨乳, kyonyu) is one of the most iconic body-type tags in doujinshi and manga. It refers to female characters with notably large, exaggerated breasts that often serve as a central visual element. Artists typically emphasize size, weight, jiggle physics, cleavage, and breast-focused activities like paizuri (titjobs) and breast play. This tag spans nearly every genre — from vanilla romance to hardcore fetish content. The artistic treatment varies widely: some artists favor realistic proportions while others push into exaggerated territory. Related body-type tags include 'huge breasts' for extreme cases, 'small breasts' for the opposite aesthetic, and 'paizuri' for breast-focused sexual acts. The tag often appears alongside 'sole female' and 'nakadashi' in heterosexual content.

MILF (Mother I'd Like to Fuck) is a character type tag referring to mature female characters, typically mothers or maternal figures. In doujinshi, this tag indicates content featuring older women, often contrasted with younger male partners. The appeal lies in the experience and confidence of the character. The tag frequently appears alongside 'big breasts,' 'incest,' and 'sole male.'

Big ass (巨尻) is a body-type tag indicating female characters with notably large, exaggerated buttocks. This tag covers various body types where the posterior is emphasized. Artists often use this tag to highlight specific art styles that emphasize curves and body proportions. Related tags include 'big breasts,' 'dark skin,' and 'paizuri.'