Cheeky! Deflowered 18 year old friend of my stepsister

I had just made myself ready to go to a party, and there sat the new boyfriend of my stepsister on my sofa, while she was in the bathroom. They wanted to have their first sex today, so I thought I’d give him even a few tips. A short strip, cock in my mouth, and then I had him where I wanted him … deep into my greedy cunt. I’ve shown him how a woman wants to be fucked, and he realized really quickly. Finally, I have blown out his first load of fuck juice. It splashed gloriously in my face when suddenly my stepsister came down. Almost caught … but I could get out fast .. hehe. I hope she has not noticed, otherwise, there will be trouble