She started sucking on it really hard and fast grabbing his ass and pulling his massive hard on into her mouth as far as she could. She looked at me and pulled her mouth off of it and with a huge smile asked me if she looked hot with her lips around the head of it? I couldn’t believe she was practically cheating on me with my best friend RIGHT IN FRONT OF ME! I was hurt, confused, jealous and really confused as I started getting rock hard watching her. Before either of us knew what she was about to do she leaned forward and stuffed the head of it in her mouth and started sucking on it while stroking it with both hands. She asked him how many inches it was and he said “11” when I’m rock hard, but I’m not there yet.” My girlfriend looked at me and asked me if she could get it rock hard and I said “sure”. His cock started getting longer and bigger as he’s looking down at her and smiling with his massive head starting to swell up inches from her face. She told him to stand up in front of her and started stroking it with both hands. My girlfriend asked him how big was it when he completely hard and he told her “Grab it and find out.” She looked at me and asked me if she could? I was still in shock and told her “Go for it.” She reached over and started stroking it and smiling at me, asking me if “Do I look hot with his huge cock in my tiny little hands?” All I could do is nod my head yes and stare in disbelief. My girlfriend said “Holy shit! That’s the biggest dick I’ve ever seen!” He pushed off the couch and ended up right next to her with his sweat pants down around his ankles and his huge cock hanging out and laughing. We were all laughing until we seen his HUGE COCK flopping right in front of her face and just stared in shock and disbelief. He spun around and lost his balance, almost landing on top of her. He jumped forward and she pulled him backwards, which wasn’t very hard considering he only weighs about 150 lbs and is 5’6″. My girlfriend and I were partying with my best friend at my house when my best friend got up to grab another beer and When he was walking by my girlfriend sitting on the couch she leaned forward and ripped down his sweat pants.