I then felt her fingers go down and grip his cock tight and she began a deliberate jacking and he said your gonna make me cum in his mouth if you dont...stop. she said I always wanted to see him suck another guys cock and since he wouldn't do it conciously, why not get my wish this way. Mark got into it and was now holding my head as he rammed his cock deeper into my throat while she jacked his dick. I was so turned on that I came without anyone touching my cock and then I felt marks nuts tighten. The two beings outside continued doing what we had been doing and at last each of them seemed to achieve the same goal. The female went down on her knees and took the male's dick into her mouth. He started fucking her face and she continued finger fucking her pussy. Belinda and I were watching, fascinated. I now knew how a voyeur felt, and perhaps I got an inkling into some of the psychology of these strangers. The male shuddered and his fluids filled the female's mouth and dripped onto her. Her legs started to spread, then paused as he hooked her panties with his finger. He pulled back, placing another hand under her skirt, drawing down the cotton fabric.Rain looked at him without emotion as he pulled her underwear to her ankles, then lifted her feet one by one to remove the garment. He stood up, tucking them into his coat pocket, then kissed her again. “For safekeeping - until I can return them to you Saturday night.”She flushed slightly, her cheeks turning just slightly pink.. Mark quickly got off me as I moaned in protest “don’t worry kiddo we’ll come back to this later, but this is our secret for now ok?” I nodded and said ok and he went down stairs to greet my mum… Later that night!“Right come on girlies, time for your bedtime, say good night to Mark and give us a kiss and go get tucked up into bed I’ll be up later” mum said to me and Janey we went and gave them a kiss and headed upstairs an 20 minutes later Mark came into my room “goodnight kiddo me and your mum.