Little sister turned succubus by big sister

What do you want, sis? I'm not in the mood. I told you, I can't help it if I'm not his type. Yes, I really am over him, so just drop it. Do you have to be cosplaying right now? It's not? What the hell is it then? Like you really just magically turned into a suckabee-whatever? Shut up. Huh? You expect ME to wear...? But he's not even into that crap anyway!

Look, just stop screwing around and leave me a-- [kissed on the lips] Ew! What are...? [feverish and heavy breathing] What are you doing? Did you just get me sick? Why would you do that? Oh God, my head. Get off my bed so I can lie-- Aah! Something's on my back! And my ass! [hurriedly stripping] Aaaaahhaaaaahhnn!

Oh no. No no no, this isn't happening, I can't be this bat-devil thing, I... [switch to deep horny voice] feel amazing. Mmm. [sis fingers her] Oh! That's good. How do you do that? Let me try. [masturbating and moaning for a while] Oh, ah, aaaaaahhhhh! Fuck, I can't wait anymore. I'll find that jerk. He can't say no to this. I'll share him with you. Come on. [wings spreading and flapping away, if possible]