So, my mum went out for the night and as I was also going out my mum had to get a baby sitter for my brother. I went out to my party, and none of the girls were putting out for some reason, I left a bit earlier than I usually would.
When I got home I found that my mum had asked the hot girl from across the road to watch my brother. So I went into the porch and looked through the small window on the door to see Rebecca (the hot girl from across the street) dancing to Rhianna. I stood there staring at her ass bouncing up and down in her tight jeans and she turned around. I panicked for a second but realised she couldn't see me.
So I continued to stare at her dancing and bouncing titties almost bursting out of her top and then looked down and realised something had happened. I was so hard and so very, very, horny that I just took out my dick and started whacking it right there in the porch.
She was still dancing and I kept tossing myself faster and harder until I eventually exploded all over the porch door. I put myself away and just walked in like I wasn't doing anything. I talked to her for a moment and was sure I was in the clear, of course that was before I realised my zip was undone and I had cum on my shoe.
Fortunately she still hadn't noticed and I was completely in the clear. Best orgasm of my LIFE!!!