My big sis Misty is dead set on getting me to take her to this 4th of july party. I've told her a million times I don't want to go and I'd rather just stay at home and play video games, but she will not drop it. When I tell her the day before that NO I am not going, she continues to press the issue, coming into my room and bothering me making me choose which bikini she is going to wear. So wierd. I still tell her I'm not going, she just wants me to take her to get a ride so she can hang out with Mark her new boyfriend. My ex is going to be at the party and I don't want to deal with that. Misty barges into my room the day of the party in her slutty outfit and catches me jerking off, embarrasing. She tells me that if I just got to the party I'll get my dick sucked by one of her slutty friends. I still refuse and she advances on me while my dick is still out of my pants. I was in shock when she tried to touch it, telling me if I just give her a ride she will finish me off. Wow. A side of my sister I haven't seen before. I am aprehensive but she bullies her way in and grabs my hard cock and starts stroking it. I guess it can't be that bad if she just makes me cum and I take her, right? wrong. Right when I am about to cum she stops and tells me the girl at the party will have to finish me. What a BITCH. With my cock still hard I grab my stuff and take her to the pool party....