This happened when I was dating an ex a couple years ago. She had struggled with drug abuse for quite a few years before we met and ended up getting back into drugs while we were dating. She ended up checking herself into in patient treatment. She was in and out a couple times before she decided to try a 6 month program. The facility she was staying at did not allow any visitors for the first 30 days. After that she had put me on a list to come and visit her. I traveled to the facility and went through the check in process. I was led to a common area where I found my gf waiting. She gave me a huge hug and kiss and was wearing a very sexy summer dress. There were a lot of counselors there and watching everything that happened. She told me they were allowed to go out on the lawn and sit on the benches. I walked with her out on the lawn and we sat on the bench. There was a couple about 30 feet from us and we were facing a very busy road and many houses across the street. My gf and I got caught up some and she told me how much she wanted to leave and come home. I talked her out of doing that eventually. She then told me she was so horny all the time and missed having sex with me. I said I was horny too but we wouldn't be able to do much about it. She said would ride me right here on the bench if I was okay with it. I explained if we did that I wouldn't be allowed to come and visit anymore but said maybe I could get her off. She scooted closer to me and said she would love that. She spread her legs slightly and I put my hands up under her skirt and found she wasn't wearing any underwear, like normal. I ran my middle finger up and down her vagina and she was soaking wet already. I really wished I could be inside of her but knew that wasn't an option. I ran my finger up and down her opening before pressing into her. I only went up to my knuckle inside of her and made small motions. She made a small sigh and moan and bit her lip. I got my fingers plenty wet and went up to her clit. I started making small circles and rubbing it lightly. She gripped my arm and kept bitting her lip. I worked on her for only a couple of minutes before she really gripped my arm and she let out a soft moan as she shook and came. She pulled me to her and we kissed a while after she was done. When I pulled my fingers away I could feel her her cum juices all over my hand. When I pulled my hand up, she grabbed my hand and sucked her cum off my fingers. We sat there for a while and she put her hand on my crotch and rubbed me through my pants. A counselor walked out a short time later my gf had to stop. The counselor said all the girls were required to check in for meds. I walked inside and went back to the common area to wait. The girls all got in line and were headed down a hallway. There were a lot of fairly cute girls in the facility. Watching the line of girls several of them smiled at me and I swear were checking me out. My girlfriend was one of the last couple girls in line and it seemed to be moving pretty slow. A couple of the girls started to come back into the common area. There were not as many counselors in this area at that time. One of the girls who smiled at me earlier came around the corner. She looked like she was pretty young late teens early 20s, shoulder length curly black hair, black rimmed glasses, average body type, shorter and had on a very light pink lipstick. She looked at me and smiled at me again. She licked her lips and looked at the bathroom at the end of the common area a couple times and looked back at me. I wasn't quite sure if she was actually trying to get me to go in there with her. She then nodded her head that way and stuck her tounge in her cheek making it very clear what she wanted. I was super horny from just getting off my gf outside and her rubbing me. I looked at the line and my gf was still walking down the hallway and it was fairly slow going. I got up and walked to the bathroom and walked in. It was super small just a small sink and a toilet not much bigger than the inside of a portapotty. I waited inside for what seemed like a couple minutes when the door finally opened. It was the girl who was making the nods towards the bathroom. There was no lock on the bathroom door which I thought could be a problem. She closed the door quietly and didn't say a thing. She just got down in front of me and got my hard cock out of my pants. She looked up at me as she stoked me softly and smiled before wrapping her lips around me. She sucked dick super good and I really enjoyed it. She had only be sucking on me for about a minute when I told her we had to hurry up so as not to get caught. She pulled her lips off me with a pop and stood up. She pulled down her pants and bent over the sink. I got behind her and pressed against her pussy and slid right in, she was wet as fuck. I gripped her sides and started to pound her as quietly as possibly. I kept going in as deep as I could and I got close rather quick from being so horny. I told her I was going to cum and she told me to pull out. I pulled out and she turned around and took me back in her mouth as I started to cum. She kept eye contact with me and stuck out her tounge. She jerked me as I covered her tounge in my cum. She then swallowed it down in one gulp and pulled up her pants and walked out. I waited a bit for my boner to go down and then walked out. I was just sitting down as my gf was coming into the common area. We sat and talked for the remaining time. I said goodbye to her and left. I made plans to come back the following weekend to visit as well. The following weekend I got there, they were having rec time outside. I joined my girlfriend and she said they were going to play bags against a couple other girls. We played a couple games and she asked if I wanted something to drink. I said sure and she asked me to follow her inside. We went in and I followed her to the cafeteria. There I got a glass of water from the machine and my gf said she was going to get juice from the kitchen. I looked around the room and seen the girl I had hooked up with sitting at a table. She shot me a smile and I smiled back. She had another girl sitting across from her. The other girl was a cute redhead and looked to be in her early 30s. My gf came back and I followed her outside again. We were out there for about 20 minutes when I told her I was going to grab more water and use the bathroom. She said okay and went and grabbed another girl to be on her team for a bit. I walked inside and went to get more water. The two girls were sitting at the table still. I looked at the one I hooked up with before and winked at her. I made a motion towards the bathroom down the hall and she shook her head yes. I walked down the hallway and went into the bathroom and waited like last time. The door opened a short time later but it was the redhead not the other girl I hooked up with. She came in and said her name was Destiny. She said the other girl I had hooked with was Charity her roommate. She said her roommate had told her about how we hooked up last time and that she wanted some dick too. She walked over and started to undo my pants. She had my dick out and in her hand pretty quick. We kissed for a little bit as she slowly stroked me. She told me to sit down on the toilet seat. I did as instructed and she took down her pants. She came and straddled me and lowered herself down on top of my cock. She was super fucking tight. After a couple of times of moving she was able to take my full length. She rode me slow and kept me deep inside of her. We kissed as she rode me. She said we had to hurry up as she didn't want to get caught and get in trouble. She got off of me and turned around and sat back down on my cock. She rode me in reverse cowgirl. This was on my favorite positions. I gripped her sides and helped guide the pace. I loved watching her littlw ass jiggle as she bounced on my cock. I started to feel my nuts getting tighter and told her I was getting close and she said her too. She started to moan and breathe hard as I felt her convulse as she rode me. I told her I was going to cum and she told me cum inside of her. I emptied a large load inside of her as she came riding me. It was an amazing orgasm. Once I was done she was slowly got off of me and I could see my cum string from her pussy to my cock as she got off me. She grabbed some toilet paper and wiped herself. I was still hard and had some cum sitting at the tip of my cock still. She looked at my cock and bent over and took me in her mouth and sucked me a couple times and pushed all the remaining cum out of my into her mouth. She got dressed as did I and we left the bathroom. I was just walked back outside as my gf was walking in. She asked what had taken so long and I said I was in the bathroom which she seemed to believe. I went out and hung out with her for the remainder of the time. She asked me to come see her the next weekend but I had to work. The following weekend I did visit. This wekeend there were a lot of family members there visiting in the commons area. My gf asked me to walk outside with her as they had a path around the facility. We walked hand in hand around the building. We walked around about half of the building around to the backside. She started to walk off the path and pulled at my hand. We went into a slightly wooded spot and went to the backside of the tree. She reached up under her sundress and pulled down her panties. She then leaned up against the tree and told me to rail her hard and deep. I wasn't going to turn down that offer. By the time I was pulling down my boxers I was hard and ready to go. I spit on my cock and started to rub it around. She said I probably wouldn't need that. I got behind her and pressed against her pussy and slipped right in. She wasn't lying, she was soaking wet. She let out a soft moan as I pressed in all the way. She told me she had been so horny for my and had been fingering herself all week. I grabbed her hips and started to fuck her. She leaned back and we kissed as I did. She told me to hurry and just pound the fuck out of her. I gripped her sides tight and fucked her as hard and deep as I could. It definitely wasn't quiet and I was hoping no one was on the walk path. She told me she was going to cum only a few moments into me pounding her. I felt her pussy spasm around my cock and missed that feeling so much. I kept fucking her hard and deep and told her I was going to cum. She told me to fill her up. I kept fucking hard as I shot a huge load inside of her. I stopped and she kept pushing back against me. She pulled herself off of me and got down in front of me. She started to suck my dick and stroked me fast. She really enjoyed making me cum and knew how to get me off right after cumming. She focused on fast strokes and lots of spit and had me cumming a second time within minutes of just cumming. It was an intense orgasm and the cum that shot out she let me shoot it inside her waiting open mouth. She sucked me a little bit more before we got cleaned up and dressed. We finished walking around the path and hung out in the common area after. I did go back a handful of times to see her but was not able to hook up with my gf or any other girls before my gf graduated. I got to bring my girlfriend home after graduating. It was about a 2 hour drive home. I fingered her as I drove to 3 intense orgasms. We had to stop at a park on our way home. We crawled in the back seat and she rode me to another 2 orgasms before I came inside of her. We stayed and made out a while before we hit the road again. She gave me road head the last 20 minutes before we got home and I came in her mouth. We went inside the house and napped together naked for a while. I had gotten a viagra from a friend and ended up popping it. Once the pill had kicked in, we fucked for almost 3 hours. She came 5 more times and I came again once more.