Not a game, I'm pretty sure it's a CG set by Konkitto.
"Haruhi-chaan, is that penis really so tasty?"
"Oh, yes... I love the taste of a cum-soaked cock.""I'm about to cum too, Haruhi. I'm gonna cum inside, so you'd better prepare yourself."
"O-okay. Please go ahead and cum inside my womb. Even if I get pregnant, I can always go to the hospital, so it'll be f-- Ah! You're cumming. You're filling me up inside... I'm sure to get pregnant now..."
