After we established that having sex in Cheryl's dorm while her roommate, Kim, was in the room was ok, Cheryl and I no longer had any issues having sex. We no longer had to time it when Kim wasn't in the room, or go fuck in one of our secret yet all too public places. We had sex in her dorm room when we wanted and how we wanted.
Granted, I think Cheryl still thought it was a little weird at first having intercourse while Kim was on the other side of the room, so most of that time it was when Kim was away or asleep. But the important thing is that it wasn't a show stopper anymore. If we were in the middle of fucking and she came home, we didn't stop. We just kept at it. Sometimes Kim would watch, other times she would ignore us, and sometimes she would reach her hands under her clothes and play with herself as she watched. Still, most of the time we fucked when we were alone, and that was just fine by me. The more Cheryl and I had sex, the more my appetite for her increased. With those huge tits and tight ass and hourglass figure, all I could think about was getting my dick inside her tight pussy or her mouth or between those huge tits. We fucked pretty much every day at least once, at at any time of the day or night.
But after a few times of getting walked in on, including one time when Kim got a little too close, we decided to set some ground rules. That day I had Cheryl on her back fucking her missionary. I had been fucking Cheryl for the last 30 minutes and Kim walked in and I was too close to cumming to stop, not that I would stop anyway. After a brief pause she took a few steps closer to us to get a better look while I pulled out and shot a huge load all over her stomach and massive tits as Cheryl held her breasts together for me to shoot on them. Kim didn't touch us any anything. But she gasped and whispered "oh wow" and smiled just a foot away from us as my semen sprayed all over Cheryl and Cheryl rubbed it into her tit flesh like a moisturizer. We got dressed and headed out to grab some lunch, leaving Kim in an obvious state of heightened horniness.
We went to one of the campus lunch spots and sat together eating our sandwiches. I could tell that Cheryl was preoccupied with something.
"Hey, are you ok? You seem lost in thought."
"Yeah I'm ok. I wasn't expecting Kim to walk in on us and come up right next to us like that".
"I know. She doesn't usually do that. Usually she stays on her bed."
I was worried that she was having second thoughts about the arrangement and we were going to have to go back to finding other places to have sex, which was always a hassle. Plus I have a bit of an exhibitionist streak in me and although I love having sex alone with Cheryl immensely I was also really enjoying fucking her in front of Kim.
"I know. It's fine but I just wasn't expecting her to get so close. It's a little weird. Do you think it's weird?"
"We'll, a little I guess but I'm ok with it."
"You really like it when she watches us, don't you?"
I was nervous how to answer. Would she be mad if I said yes? But if I said no would she see right through me and be mad at me for not being truthful? I decided to be honest.
"Yes I do like it. I mean, most times we do it she is not around. But having her watch once in a while is kind of a turn on. Don't you think?"
She paused for a minute and looked distracted, almost like she was remembering one of our previous fuck sessions.
"I have to admit that I like it, too." I gasped a sigh of relief. All was good.
She continued. " I think you and I are both are pretty open sexually. That's one of the reasons we work so well together. And there's nothing wrong with showing our bodies as long as it's consensual to all parties."
"And Kim doesn't seem to mind," I smirked.
Cheryl smiles and rolled her eyes. "No she definitely doesn't. And you're right. A little kinky play every now and then does spice up our sex life a bit." She lowered her voice and leaned towards me so no one at the next table could hear. "Not that I have any complaints. I love your cock. But knowing she is watching does get me extra wet."
That made me feel good. I was really hoping that we were going to continue and it sounds like we were good.
Cheryl continued. "There is something really hot about being watched. I've never done it before we got together but I'm open to exploring it. But I think there should be some ground rules."
"Of course. I want you to feel comfortable. Anything you like."
"Well the main thing is that I just don't want her to join in with us. I'm just not ready for that."
"That's ok I understand. There's no reason that has to happen."
She let out a nervous giggle that was very cute.
"Ok. As long as we're clear on that."
I just couldn't stop looking at her She's so sexy and adorable at the same time.
"I just like what we have and I don't want anything to mess it up."
"Oh babe I understand," I replied. "You are the best thing that's ever happened to me. I don't want anything messing that up. Nothing is worth that."
"Aww," she said, and leaned across the table and gave me a quick kiss. I got an eyeful of her cleavage as she leaned, and I saw the guy at the next table noticed and his girl punched him in the shoulder.
She continued. "It's not that I'm saying we would never spice things up and have a threesome or something with another couple for your birthday someday or something."
"Really? You would really do that?"
She paused and thought she then replied. "Yeah maybe. Alcohol might be required. But maybe. It's every guy's fantasy, right?" she said with a smile. "But I just don't think it should be with Kim. She's my roommate and my close friend. It would make things even more weird and awkward, you know?"
