You get a text from your girlfriend’s little sister asking you to come over. You do, and she explains she wants some help and advice before her first date. You’re a little worried but she assures you her big sis says this is all good! She shows you her outfit and she’s uncomfortably teasing with it, bending over, showing you her stockings, even taking off her shirt because you two are “just like family” and “family has no boundaries”. Then she gets on her knees and wants to use you for blowjob practice?? There’s NO way your gf said this is cool but once again her lil sis says it’s fine and even that your gf even wants you to cum. That’s good cause you can’t help but fill her little sisters mouth with cum after how well her little mouth sucked you. BUT then she admits she’s been lying about your gf’s permission! How could you be so naive! She then says if you don’t fuck her til she cums in doggie she’ll tell, and so you have no choice. You fuck your gf’s little sister’s tight pussy and secretly it feels so good you fill her with more cum you’ve ever filled her big sis with, and you love how it looks dripping down her thighs when you pull out, too ♥︎