House Party

My teen sister ran into my room asking me to break up a fight involving one of her friends at our house party. A group of guys where flirting with her best friend Alice, and her boyfriend was visibly enraged. Parents were not home, I was in charge. I Kicked all the guys out and told some her best friends they could sleepover. She had tears running down her cheeks, but no one seemed to care. I took Alice to my parents bedroom to give her some privacy. As I was leaving, Alice stops me, begs me not to leave her alone. I'm conflicted, I don't want to get involved. She is a bubbly rosy double braided blonde girl, wearing a cropped grey hoodie, with black leggings that hug her ass firmly. Very sexy hips, I'm sure some of the girls were jealous of her presence alone, and I don't want to cause more problems. I tell my sister, Alice is going to sleep over in our parents bedroom, I will be in my. I come back, lock our doors and lay with her in silence to comfort her. I noticed I have a great view of her braids and ass and cant stop staring. Alice giggles and out of nowhere moves my hand down her waist My cock is fully hard now, we talk for a bit. She vents about her night. Tells me about her boyfriend using her, how some of his friends grabbed her ass, tried touching her, called her a snowbunny whore. She's been mistreated all night. She looks at me with a sexy pouty look. Lips connect, clothes start coming off, I'm sitting up with my cock out eating her neck while she's wanking me. We jump at the sound of my sister and her friends knocking on the door. Alice looks at me with a disgusted look, crawls in front of me facing my erection and takes it in slowly. Again they knock, this time a different girl calling her name. My cock head comes out of her mouth, she finally responds and tells them to leave her alone. We hear them leave, she looks up and lays on my thighs. I start moving her moist thong to the side, massaging her pussy. She takes my hand away, no more teasing. I tell her I have no condoms, she climbs anyway, lowers her wet pussy. I fuck her deep and slow, I don't want to make noise. The bed ended up creaking anyway, I got her on all fours on the floor face down ass up. I get a bright idea to turn on the tv in the room to muffle out some noises. Her legs start shaking, I end up pulling her braids but she starts whimpering a little loud. We fell asleep after I came down her throat. Before i left we had one more steamy session where i came on her face in the shower.