As you get out of the shower your girlfriends sister is spying on you! She is masturbating in your bed that you are staying and your girlfriend is no where to be found! All she wants is to see your cock. But things escalate to full blown fucking your GF sister! She begs you to let her suck your cock and steals your towel! She admires your cock and how much bigger it is than she could of ever imagined! She starts to suck it before you can say another word. Fuck it feels good so you play more into it. You know you have always wondered what it would be like to fuck her.. Its good too. Her pussy feel so much higher than your girlfriends. You wonder if your GF has been with more men thats why her pussy is loose. So you justify fucking her sister harder and deeper. She just wants a cock she doesn't care who's it is or who will get mad. She just wants your cum! She is getting fucked hard in doggy and you can feel her pussy swelling as she's about to cum but you can't pull out and you can feel your own climax building so you bust a huge load in your girlfriends sister!