Unprotected NTR sexual gratification: an extremely lewd girlfriend and her promiscuous sister! HUNTC-015

My girlfriend's younger sister is the kind of girl who only gets excited when her boyfriend has a partner. Somehow she found out about my girlfriend and me's sex life, and she'll say things like, "Your sister and he always use condoms when they have sex, it's so pitiful..." It's like she's saying it's perfectly normal to have sex without condoms. And she'll whisper in my ear with a lewd look, "If I were there, I'd make you fuck me until I'm satisfied!" Hearing that makes me super hard! "And I'd even ejaculate inside," that sentence knocks me out!