Removing my slip so my smooth soft vagina was uncovered for all to see, I felt a sudden sense of freedom. The sun falling onto every inch of me, with ... cool sea breeze tickling past my skin, now covered in goos pimples with excitement. I caught both Dan and Jason stop and admire me shortly. I looked on eagerly as both simultaneously grabbed hold of there shorts and slowly lowering there pants. Dan's penis was the first to fully appear, knowing him well I could tell that he was not completely. After I hug them and tell them how much I’ll miss them, as well as the promise to bring souvenirs on my return, they return to their spot in the cluster and I let Fir finish her lesson. I sit, watch and occasionally answer some questions for about a half hour before the kids are sent home. Leaving the lab in it’s typical quiet state. Prof. Fir gestures for me to follow her before disappearing through a door. I follow swiftly behind her, catching up before she makes it too far down the hall. She. "Sorry," I said sheepishly. I didn't look down and she kept her eyes safely on mine, but both of us were thinking about that bulge in my trousers. Mum said, between labored breaths: "A mother should never do that to her son." With that she turned and walked out of the kitchen. The next day, Monday, I got home from school and found her in the kitchen, chopping up a cucumber. The rest of the salad was on the work top, in various stages of disassembly."Mum, can I apologize for last night?" I. " My view was blocked by Amber kissing me. This was amazing the girl I had dreamed about many nights was now kissing me. All the time my hot step mom is riding my cock pushing against the other side of the hot tub pushing back taking as much of my cock as she possibly could wondering where Iris might be I break the kiss with Amber to look around and see that she is behind Amber eating her out. I had watched a lot of porn and seen this but never did I think I'd see it in real life especially not.