AN INVENTOR building the next generation of sex robots with his wife reckons the cyborg lovers could help save marriages - and have improved his own. Robotics expert Dr Sergi Santos and his partner of 16 years, Maritsa Kissamitaki, are the brains behind ‘Samantha’, an artificial intelligence-driven love doll that he says is capable of enjoying sex. Sergi, from Rubi, Catalonia, Spain, credits Samantha - who has three different sexual personas, ranging from shy to raging nymphomaniac - with enhancing his sexual endurance. He also claims the love bot improves his marriage by offering a sexual outlet when his wife isn’t in the mood.