(Reitaisai 14) [Rafflesia (Campbell Gichou)] Shokushu ni Saku (Touhou Project)

Anal intercourse is a common sexual act tag in doujinshi. It appears across nearly all genres and demographics, from vanilla romance to extreme fetish content. The artistic depiction ranges from realistic anatomy to highly stylized presentations. This tag frequently co-occurs with tags like 'nakadashi' (internal ejaculation), 'big breasts,' and various body-type tags. Some artists specialize in anal content, developing signature techniques for depicting the act. The tag covers both consensual and non-consensual scenarios depending on accompanying tags.

Blowjob (フェラチオ, fellatio) is one of the most common sexual act tags in doujinshi. It covers oral sex performed on male characters. The artistic depiction varies from realistic to stylized, with many artists developing signature techniques for depicting the act. Common visual elements include drool, tongue detail, eye contact, and depth indicators. The tag appears across virtually all genres and is frequently paired with tags like 'ahegao,' 'big breasts,' and 'sole female.'

Double penetration (DP) is a sexual act tag indicating simultaneous penetration of two orifices. In doujinshi, this typically involves vaginal and anal penetration simultaneously. The tag is often found in gangbang or multi-partner scenarios. Artists use various techniques to depict the act, often with emphasis on the character's reaction. Related tags include 'gangbang,' 'anal,' and 'multiple male.'