Kinpatsu Chounyuu Gal ni Gyaku Deriheru Atsukai Sarete Iru Ore no Hanashi

Jinguuji-san, a blonde gyaru with big tits, treats glasses-kun like her dedicated sexual relief guy. This is a story about a day when they ended up having a series of creampie sex sessions.

(Source: Melonbooks, translated)

Note: Released at Comiket 103, 104.