Cumming Outside

When I was a teenager, Speedo swimming trunks were the swimwear of choice, unlike the big baggy shorts of today. They were made of a thin but stretchy material, which kinda showed all the bulges if they were a snug fit. During the summer before my 16th birthday, some friends and I decided to go swimming at the local outdoor pool. Apart from the fit young girls in the pool, many of them were laid out on the grass sunning themselves in their bikinis. Having had a swim I decided to sit it out for a while and dry off in the sun whilst my friends continued in the pool. We had positioned our towels close to a group of girls who looked our age, or slightly younger. A couple of them must have been wearing last years bikinis as they were busting out of the sides of their tops and most of their butt cheeks were on show.

I was sat up watching this group of girls next to me with my sunglasses on, trying not to make it too obvious I was looking at them. The combination of the warm sun on my cock and watching these girls constantly fiddling with their too small bikinis had me rising inside my Speedos. For the sake of modesty I laid on my front with my head to the side. I was now able to see beneath my sunglasses at ground level straight between the legs of two of the girls laying down. A third girl was sitting up and kept reaching across into her bag, thus accidently popping her titties out. I had the best view ever and my cock was now rigid in my Speedos.

One of the girls had a pale pink bikini and the bottoms went to a v-shape between her legs before disappearing down into her butt cheeks. I could easily make out her pussy lips and several times she had to adjust herself as they were a little tight. The other girl laying down had big titties and her nipples were quite prominent. I shuffled around slightly to get a better view and I could feel my cock sliding against the silky material of my Speedos. I was now quite hard and began to grind slowly against the towel I was laying on. I had to be subtle and not make it appear I was getting myself off. The smooth material against the underside of my cock-head was sending tingles through my scrotum.

I didn't really want to cum out here but what happened next sent me over the top. The girl in the pink bikini moved slightly and her pink bikini briefs were so tight her puffy, hairless pussy lips were now showing either side of the material. I ground down a little harder into my Speedos just as the girl sitting up leant over too far and her bikini top pinged off. Her perfect round titties popped out and she sat there for a moment or two trying to cover up. I slid my cock harder against the silky material and I knew I was gonna cum. My cock began pumping my hot jizz into my Speedos as I looked at one girls pussy lips and the other's titties. My balls felt like they had shrunk into my scrotum as I pulsed away beneath me.

I let my cock subside a little before picking my towel up and holding it in front of me to get into the shower and clean up. It was a most enjoyable orgasm and had repeated it several times in the privacy of my bedroom since.