Himegami-sama ga, Ryoushin o Hitojichi ni Haramasero to Ikaryaku.

A goddess from the sky seduces the protagonist to make him give her internal cumshots. He tries to resist temptation; however, the goddess gets angry and takes his parents as a hostage! "If you want to save them, have sex with me and give me your semen!" On the other hand, he is threatened physically by his longtime female friend. She says: If you don't give in, I will bite your precious thing off! The protagonist becomes the prey and the girls become hunters who look after him. Does he succeed in outrunning them, or does he make counterattack!? [From [url=http://eng.dlsite.com/work/=/product_id/RE068400.html]DLsite English[/url]]