A transvestite who pumped industrial silicone into other men to give them feminine features pleaded guilty to manslaughter in the death of a man who suffered complications. Stephen Thomas, 31, will serve five years in prison and 10 years on probation under the plea to felony involuntary manslaughter, which he entered Monday. The plea of was appropriate because those involved were willing participants and there was no intent to kill, Chief Assistant District Attorney Greg Edwards said Friday. The death of Andre Geter in December 2003 threw a spotlight on ``pumping,'' a thriving underground practice among men living as women,...