Oh, you're not getting laid, are you? Let me fuck you instead of my husband, sister

Take your dick out of your mouth and tell me what you're doing under your brother's blanket

My sister asks for cunnilingus, and I'd like to fuck her. Lick her, what if she gives it to me later?

I have a hard-on, and my sister's ass is beckoning. I'll stick it in once, it's no big deal