Is this the most unexpected proposal ever? She thought he was just stretching his legs!A London Marathon runner has made his day even more memorable by proposing to his girlfriend during a routine rest stop. <br /> <br />This video, posted to Facebook by a family member, shows the heartwarming moment Jordan Meikle pops the question to girlfriend Kayleigh Harris on the sidelines of the marathon route. <br /> <br />At the start of the clip, Jordan is casually talking to Kayleigh while he fumbles about in his pockets and bag - facing away from her so she can't see the ring. <br /> <br />He then starts to stretch his aching muscles. But he takes his lunge just that little bit too far and his knee hits the floor, putting him in prime proposal position. <br /> <br />Poor Kayleigh doesn't seem to realise what's happening. That is, until she sees him open a box and present her with a ring.Cue lots of screams and congratulatory cheers from the crowd before Jordan sets off on his way again - after a quick kiss from his new fiancee. <br /> <br />This proposal comes on the same day a couple tied the knot halfway through the 26.2 mile endurance test. Newlyweds Laura and Paul then faced another gruelling 13 mile run before they could enjoy their wedding reception. <br /> <br />Congratulations to both couples! <br /> <br />London Marathon proposal: Watch runner break off from race to pop question to girlfriend, London Marathon (Recurring Competition), Wedding, Session, Television