I laughed nervously and said I had come to see if they needed any help. To which a dirty grin spread across her face and I realised how that sounded. ...o I cried I meant if you needed a picture with both of you in, her grin just kept getting bigger. How about a picture with you and me in, she said. I was a little take aback and then he encouraged me on and said yeah go on, stand next to her. I didn’t really know what to do so I went and stood next to her. She looped her arm through mine and he. He started pushing into my asshole, fucking me harder as he approached orgasm. He bit his lip, stifling a groan as he went over the edge. I pulled my ass off of his softening dick and leaned over him, my cock pointing right at his face. Before long I shot my load onto his face. We made out for a few minutes and then cleaned each other up. Then we pulled the covers over ourselves and went to sleep.We were awoken by a knock on the door. I wrapped a towel around my waist and answered it. It turned. She had tried to ignore her feelings, to sublimate them with meaningless sex. But it was no good. Her heart, her very soul belonged to the boy beside her. Her brother. How could she tell him? What would he say if she did? She had to try though. Hers had been a life spent taking the easy option. The Principle of Least Effort she had heard it called. Well, tonight she would be making an extreme effort. She had to know once and for all.For his part, Aaron was going through some turmoil too. His. ......his hand then ran down the outside of my thigh..........till he reached the bottom of my dress, he continued down caressing my legs before slowly moving upwards his hands raising my dress as he moved it higher and higher . My dress was up round my waist his hand touching the waistband of my thong........I took his hand and placed it between my exposed thighs spreading my legs slightly as I did it............ he needed no further invitation............he ran his finger between my thighs.