I untied my board shorts and my penis sprung up, the girls giggled a little bit. Megan was again the first to speak saying that it was impressive compared with what she has seen. Then I took another chance. I asked if they would like to continue where they left off and would they mind if I watched, they looked at eachother for a moment and then said "why not" almost simultaneously. So I sat down on the chair in the room while the girls assumed the positions that they were in when I had walked into the room. Courtney took her free hand throwing the sheet away, giving me an unimpeded view of the action. They continued to make out and Megan's hand was slowing stroking Courtney's clit. It was amazing how similar Courtney vagina looked to my wife's own vagina. Courtney quickly came and immediately pushed Megan onto her back and pulled off Megan's bikini bottoms exposing a short landing strip to a very aroused vagina. Courtney bent over and started kissing her near her belly button, quickly working her way down. From my angle I could see Courtney totally bent over and exposed as well as Megan's neatly trimmed exposed vagina. Courtney went for it, using a long stroke of the tongue on her sister's sweet vagina. Megan was grabbing her breasts, playing with her nipples and biting her bottom lip, looking like she could cum at any second. Courtney surprised me after eating her sister out for a while going a little further south and swirling her tongue around Megan's anus, eventually darting it in a little then sticking two fingers right up her vagina in unison. Megan immediately started to cum, her body convulsing hard. At that exact point I also let loose streaming cum out of the end of my penis and onto my chest and stomach.
Both girls collapsed onto the bed in a heap of sweat. All I could say was WOW that was amazing! While they were catching their breath I went into the attached bathroom to clean myself up. We left the bedroom shortly after, leaving our clothing behind, we all figured we had see everything on each other by now, what was the point of even wearing anything. We had a quick bite to eat and then jumped into the pool to watch the sunset over the water.
I was leaning on the edge of the infinity pool with my arms up on the spillover and Megan came up behind me wrapping her arms and legs around my torso. I could feel her ample breasts pressing into my back and her legs wrapped tightly around my stomach, amazingly I was actually starting to get hard again. She simply said into my ear, "thanks". I turned around and looked at her and said "thank you! I will never forget that". I then asked her how long they had been having sex and she looked at Courtney and said about 6 months off and on. They figured that this trip would be their chance to really explore each other's bodies to the fullest extent. Megan said that today was the first time Courtney's tongue had been in her butt but that she had put a finger or two up there in the past. Courtney then swam up and explained that they were not "lesbians" or "bi-sexual" but that they were that way with each other, they had never even thought about having sex with any other girls so far and they both still liked men, which is why they let me watch. Courtney said even though she could not really see me she enjoyed that I was masturbating while watching the two of them. Then Courtney went up behind her sister and straddled her (the same way Megan had straddled me a few moments ago), cupping her breasts and kissing her lightly on the neck. I immediately got hard again.
Megan noticed my growing erection and reached her hand underwater and stroked it lightly. I became aroused even more as Courtney stroked Megan's nipples and kissed her on the mouth. They broke the kiss and Courtney dismounted her sister and came back around to find Megan stroking me underwater. Megan then started to kiss me on the mouth and I heard Courtney submerge underwater and I felt a sensation on my engorged penis, she was sucking it into her mouth, after about 15 seconds she came up for air. I placed my hand on her butt indicating to her to come closer, she placed her arm around me and her hand on her sister's butt, gently massaging it as we made out. We then moved closer to steps and started to exit the pool, Megan sat on the edge while Courtney and I stayed slightly submerged. Megan and I were still making out and I slowly started to kiss down her body, stopping at her breasts and taking some time with each nipple, Courtney started to massage and kiss the nipple that I wasn't as I moved down her body. I made my way to her stomach and abdomen and finally to her hot, wet vagina. I could feel a shiver go through her body as her sister played with her boobs and I used my tongue on her vagina, I could feel her getting close to cumming so I stopped with my mouth and started push my now very hard erection into her entrance, she came almost immediately but pulled me in closer, she obviously wanted to come again. As I slowly fucked her Courtney's hand started to massage her clit and I could tell that Courtney's other hand was going for her own vagina at the same time. With me on top of Megan and Courtney bent over next to me I reached up and started to massage Courtney's butt, I didn't want anyone to feel left out of the process, I even reached back to start rubbing her pussy from behind. As I rubbed her pussy she surprised me by reaching back with her hand and shoving a finger in her anus, slowly moving it around in circles and then adding a second finger, this girl really likes a little dual penetration.
As Megan came a second time I pulled out and came myself, all over her chest. Her sister quickly mopped it all up with her tongue and kissed Megan to share the load. Realizing Courtney hasn't cum yet, Megan started to suck me off and get me hard again, this worked and in a few moments I had another erection. I started to rub my dick on her pussy, getting it nice and wet but she stopped me after it was lubed up and said she didn't feel right with me inside her vagina. She then pulled the two fingers out of her anus and just pointed. I took the hint and slowly started to put my dick in her ass. Megan looked very shocked by this but rolled with it asking Courtney if she felt any pain. Once I was all the way in I could see her eyes roll back in her head as I started to fuck my wife's sisters ass. Megan started playing with her nipples then started eating out her sister's pussy as I fucked her ass. It was a sight to be seen!
To be continued...