write me a touching detailed porn story where NAME_1 and NAME_2 from Genshin impact give a private blowjob to the player's character (very detailed description), and then as a special package to blowjob both NAME_1 and NAME_3 asking player to kill them. As he grants their will, heir heads exploding into bloody mess. Excited by their lustful sacrifice player fucks the headless bodies into their throats, filling them with cum.