My Girlfriend and I were travelling on a small Greek island in summer and had been driving along the coast admiring the scenery and beautiful coastal towns all day. Late in the afternoon we decided to stop off at a beach for a swim to cool down. After getting out of the water I suggested that we go for a short walk. We headed up over the headland and found ourselves on a deserted stretch with nobody around.
As we walked along I grabbed my girl by the hips, leaned forward and whispered in her ear. She immediately looked around, and reached back and rubbed my groin. I pulled her in close and she turned to face me, our lips locking and our groins thrusting towards each other simultaneuosly.
Quickly we were naked & she bent over a large marble rock. We had a few minutes of fast furious sex on the beach during which both of us reached intense orgasms. As I was cumming I pulled out and sprayed over the marble rock. I heard my girl gasp and then laugh. I thought she was mocking me until she pointed to the rock. The marble rock had what appeared to a naturally etched love heart on the top side where she had just been leaning over it. We stopped and laughed.
We photographed the rock to remind us of our little adventure. To this day we still bring up the photo and have a laugh about our sexual adventure in the Greek Islands.