The tentacle burst into her tight hole and pumped semen into it

That's how tentacles get you pregnant. They come inside without asking

Met an acquaintance on the bus, fucked her and came in the ass

Brigitta was naughty and her ass will be punished by the stern Mistress Ash

April fucking the kidnapper (Ninja Turtles)

Monster Girl Nualia obediently gives herself to her master