For my girlfriend's birthday she asked me to be free use for her friend - Part 1

A few months ago it was my girlfriend's birthday and I asked her what she wanted. To put things in context, from the beginning of our relationship, things have been very kinky. We have always been about fulfilling each other's fantasies. Early on, she brought in girlfriends for threesomes. We have had sex in front of our friends. I have been tied up a few times. However she totally surprised me with her answer. She said she wanted me to be free use for one of her girlfriends for one night. Almost right away I said yes. It's actually something I've had been fantasizing about for a while. We talked it over with her friend Kim and we came up with some rules.

1- A safe word. Either one of us can use that word and everything would stop. it's all about consent and feeling comfortable.

2 - Since she's on the pill, I don't have to use a condom.

3 - I have to cum inside her - no pulling out.

4 - This takes place one evening all the way through the next morning.

5 - Once this starts, I have to get naked and stay naked through the morning.

6 - My girlfriend will not take part in anything. She only wants to watch. That is the biggest turn on.

The night this happened we were over my girlfriend's house. Also there were two other girlfriends there. We started drinking and playing strip poker. I think everyone was getting frustrated because I was mostly winning and only lost my sneakers and socks. Everybody else was partially naked. At some point my girlfriend said it it was time to start.

Kim grabbed a comforter from the couch and put it on the floor. She told me to lie on it. Kim walked over to the kitchen and grabbed a pair of scissors out of the drawer and walked over to me. I didn't know what was going on. She took the scissors and cut the shorts off of me. Then she cut off my shirt. At this point I was just a man in boxer briefs. She cut them off. I was so horny from this. My dick was so hard. Everybody else was looking at me and I felt great.

Kim put her hands on my dick and started stroking me. She went so slow. Then she started to blow me. She kept sucking me as I started to moan. I looked up and saw my gf smiling. She was enjoying this just as much as me. Then Kim climbed on top of me and started riding me. I thought I was going to cum early, but I held out. As she was fucking me I started to feel more comfortable. It was such an amazing feeling fucking another girl right in front of my girlfriend, with other people watching.

Then she got off of me and sat on my face. I ate her pussy. She was so wet. I grabbed her ass and started squeezing it. She started moaning. At this point I really wanted my gf to get on top of me, but those weren't the rules. Eventually Kim let out a groan and came. She got off of me. She started fingering herself and then wiping her hands on me. She did this a few times, spreading her cum on my chest, face and hair.

She hopped on my dick again in a reverse cowgirl position and started riding me again. I was squeezing her ass and spanking her as she was bouncing up and down on my dick. We were both making so much noise. She started breathing a lot faster. After a few more minutes I could feel her body shaking, and knew it was almost time. Then she let out this scream and came a second time all over my dick. She kept going and told me that she wanted me to come. I held out for a while, but I knew that I was very close. I went for a few more minutes, then I came so much in her pussy.

She got off me and put her hands on my dick, which was still hard and dripping with cum. She put her fingers in her mouth and then in my mouth. We made out, tasting each other's cum.

Then she started blowing me again. I looked over at gf and she was enjoying this so much. The blowjob was so good. I went as long as I could, but then I came a second time in her mouth. She then spit up the cum on my chest and rubbed it all over my body again. I was a hot cum mess. Kim hugged me and then went to the bathroom to clean up. The two other friends hugged me. gf give me a big hug and said thank you for a great birthday present. I told her I wanted to shower and borrow some clothes from her. She looked at me and said, "No shower and no clothes. Kim owns you until morning."

Part two coming soon!