British gold medal winning cyclists Laura Trott and Jason Kenny were caught on camera kissing during the women's volleyball final.
The pair, who have kept their relationship out of the public eye in the run up to the Games, were sat next to Prince Harry during the match at Horse Guards Parade but only seemed to have eyes for each other.
Trott and Kenny shot to fame during the Games after both becoming Olympic champions in the velodrome.
Hosts Great Britain have dominated the track cycling competition with a haul of seven gold medals from 10 events.
Trott won gold in the women's omnium and team pursuit, while Kenny was victorious in the men's team sprint and individual sprint.
Footballer and Olympic ambassador David Beckham was also at the match and the pair joined him to have their photograph taken.
Harry was at the velodrome on Tuesday night to see Trott, from Cheshunt, Hertfordshire, secure her second gold in the women's omnium.
Harry, wearing a blue polo shirt, was seated next to Trott, and was seen chatting and laughing with the cyclist.