[Datenshi no Ana (Decarabia)] **** Party (Comic Party)

Mizuki never stood a chance once the men got her drunk, her huge breasts bare and stocking-clad legs forced open as they take turns making her theirs at last. Crying and sweating through round after round, she whimpers that her body is changing shape and she'll never feel her boyfriend Kazuki again, while the men laugh about her finally accepting all of them. Just when she thinks the ordeal is over, a muscular stranger from the next lab over arrives with a bad reputation and something she swears will never fit.