An unfaithful lover claims he "accidentally" killed his girlfriend who liked to be throttled during sex, a British court was told yesterday. Beauty therapist Kerry Sneddon urged her beau to apply "a bit of pressure" to her throat during sex and they had done it some 7 times although he didn't like it, boyfriend Jason O'Malley, 39, told police. Sneddon's body was found with a ligature around her throat. O'Malley says he doesn't remember how that happened. Prosecutors charge that O'Malley murdered Sneddon during an argument about his other girlfriends, reports the Telegraph.