the couple appeared not to mind being in full view during their steamy encounter at the three bridges playing fields in crawley , west sussex , as temperatures reached 25c in some parts of the uk .
workers at an office block which overlooks the park said the pair , who were semi-naked , did not even appear to be put off when people walked past them during their sex session at 3.30 pm yesterday .
photographs and videos of the unusual incident were quickly posted online and shared thousands of time .