MARRIED women are having more sex than their single pals, a study has claimed. Smug marrieds have much more to smile about in the bedroom compared with Bridget Jones-style singletons, the poll of 1800 women found. More than half of all women said sex gets better the older they get and nearly four in 10 believe it is better within a long-term relationship or marriage. Over a quarter said they were more adventurous with a long-term partner, mainly for fear of rejection if they tried to be too daring with someone new.