My girlfriend's friends part 1

I've been hooking up with my girlfriend's friends recently. One of them seduced me at my girlfriend's birthday party and I fucked her in her car. Now, I can't stop and I've been fucking her friends because they're soooo hot. Yesterday, my girlfriend was at work and her friends came over. I opened the door and 2 of her friends came in. One was Isabella, 18, blonde, had a PERFECT ass and good sized boobs and the other was. Skylar, 23. She had black hair, freckles, and had the biggest, natural ass I've ever seen. It was pure muscle. I shut the door while they got undressed. I laid down on the bed while I took off my shirt and they unbuckeled my jeans and revealed my huge boner. They took it out and slowly put their tongue on it when I suddenly heard my girlfriend's car pulling in the driveway.