My first bi encounter

He then came into the bedroom took off his pants and lay on his bed. His cock was so erect and stood 12” or more up to the ceiling. I knelt before him and tried to suck his long huge cock. Was my first time and hope I was doing it well to earn my $$. Just to get my body high enough to lower my mouth on to him was hard. After 5 minutes of sucking his cock he asked, Do you have a condom? I said no. Never thought of needing one and neither did g/f tell me or offer.
He told me to turn around and put my ass up. He lifted my dress and pulled my thong to the side. He took his cock and slowly entered my ass. I was surprised it didn’t hurt. I guess using that dildo helped me a bit earlier that night. I looked to the left and his door was open. I can see his roommate jerking off watching us. He was gentle at first but started faster harder and deeper. I had tears come to my eyes and gripped the mattress holding on from his thrust and I wouldn’t fall off the bed. I did not believe I took his cock balls deep. I can hear and feel his balls hitting my ass cheeks. I was squeezing my eyes tight from the pressure he was laying on me. I opened my eyes and seen his roommate in front of my face jerking off. He told me to suck his balls, so I did. He kept jerking and slapping my face with his cock as his balls were tight in my mouth. He was wiping my tears with his hard cock and telling me to suck his balls harder. His roommate started calling me a whore and a slut. He was jerking off faster and groaning. The black male was doing the same to my ass. Couple minute’s later they moaned and grunted one shot in my ass and the other on my face.
I gasped and fell on the bed. His roommate picked me up by my armpits and pushed me out the bedroom thru their house and out the front door. My face all wet make-up smeared and I can start to feel cum oozing out my ass down my leg.
Now standing on the sidewalk shocked from what just happened. My g/f I spot pulling out of her parking spot and drove up to me. I got in and she asked me for her $40. Damn! They never paid me! She told me to go back knock on their door and get the $$$. I did and they would not answer. I turned to her and threw my arms up and shrugged my shoulders. She drove away.