You're the masochist boyfriend of two sisters, and the two get you off by telling you about an imagined cuckoldry scenario... (CVs: Haru Amachi & Poplar Sawano)
A binaural cuckoldry audio work about a guy who wants to see his pure and earnest girlfriend get fucked by another man, and takes the steps to ensure it happens.
My fiancee fights a younger kendo club member who insulted me, but she is defeated. As punishment for her defeat, she is forced to become that club member's girlfriend in the men's washroom...
A doujin audio work where the senior girl you have a crush on is cucked by a middle-aged janitor and she shows off her sex to you and gives you masochistic sexual training.
You, a cherry boy masochist, watch the girl that you just barely mustered up enough courage to confess your love to... have sex with her playboy boyfriend. (CV: Saki)
Enjoy(?) as the girl you have a crush on has sex with her socially capable boyfriend right in front of you... using you as bait for their passionate fire. (CV: Miyako Hagiwara)
"Wha...!? Y, you, what is it...! A video of me having sex with my BG...!? When did you!?" Her perverted fat-ass teacher blackmails her into a sexual relationship and... (CV: Phan Masaki)