If you have not read the other parts, I recommend that you read them first as it provides the back story.
A couple of weeks had passed since our first date, and I was seeing Sarah a couple of days a week. We would have spent more time together, but work being what it was, we were both pretty busy. I had stopped screwing around with Jennifer which made her a little pouty, but I think she understood. She is so hot, and I still thought about and masturbated to thoughts of her. But what I had with Sarah was undeniable. I wasn't ready to call it love yet, but it was moving in that direction.
Friday afternoon came around and it was one of the few days that I had to go into the office. While I was at work, Sarah sent me a text message and asked if I could come over when I got home. I replied to her that I would be happy to and that I would be there around five. I asked her if there was anything I should bring and she replied, "Only yourself. Come in when you get here."
Four thirty finally arrived and I left work and headed home. The drive was uneventful, and I parked at home. I didn't even go inside, but just headed over to Sarah's house. I opened the door and stepped in and didn't hear anything, which surprised me, because I thought I would have heard the kids or Jennifer or anybody. I listened for a minute and was about to call out when I heard a moan from upstairs. I was fairly certain that's where Sarah's bedroom was, but I hadn't actually been in it yet as we mostly got together at my house.
I went up the stairs as quietly as I could and slowly walked down the hall. The door to what I presumed was Sarah's bedroom was open and I saw a beautiful sight. Sarah and Jennifer were on the bed, naked, in a 69, licking each other's pussies with abandon. I pretty much went from not turned on to rock hard in seconds. "Holy fuck." My brain couldn't come up with anything more eloquent than that.
Sarah, who was on top, looked up at me and then moaned as Jennifer did something to her that I couldn't see. "Jennifer, we have company." Jennifer's head appeared from around Sarah's thigh and Sarah got off her and laid down next to her.
"Um, what's going on?" I asked, really stupidly.
"What does it look like?"
"It looks like the babysitter, my next door neighbor and/or girlfriend are giving each other a lot of pleasure."
"Are you upset?"
"You're kidding, right? That's the hottest thing I've ever seen, but I have to ask what's really going on?" I didn't want to get my hope up too much, but maybe I would get the best of both worlds. But in the worst case, Sarah may be too open for me and I didn't want a parade of strange people going through my house. What if it was even worse and she wanted to have a threesome with another guy, which I wasn't going to be into? All of these thoughts and more went through my mind at the same time.
While I was talking, Sarah started running her hand up and down Jennifer's body from her thigh to her breast, gently tracing invisible lines over her stomach. I could feel myself hardening.
"Okay, here's the deal Paul. When you first had sex with me you admitted that you had been with Jennifer. Now, I knew this already but the fact that you were honest with me went a long way with me. I like you, and I want to be with you and date you, but we need to be completely honest. Jennifer and I have been fooling around for months, I just didn't think you were ready for someone. I was wrong. I'm not into open relationships, but I am bi and I like Jennifer a lot. On the other hand, I'm not looking for a long-term relationship with her, but I am with you. Does that all make sense so far?"
"Yes."
"Good. If after these revelations you still want to be with me, I think the three of us could have a wonderful time together but know that I want a real relationship with you. This isn't an invitation to sleep with anyone we want to sleep with though. I like Jennifer, and I know you like Jennifer, and I'm about to be a hypocrite and say that I want us to be monogamous, except for her. Are you okay with that?"