The former real estate agent - who is currently involved in a bitter custody battle with estranged husband Charlie Sheen over the welfare of their two-year-old twin sons Bob and Max - has been plagued by rumours she took drugs while she was pregnant and is still addicted to illegal substances but Brooke claims that couldn`t be further from the truth. She told US TV show `Extra`: "The boys are having a wonderful time. Everybody`s healthy and happy. "When people say all those mean things... oh yeah, I think, get a life. I would say about 50 per cent of the time they`re lies. The only thing I care about is that people know I`m a good mother." Charlie`s mother recently claimed Brooke - who reportedly took substances while on a recent holiday with Charlie and his two `goddesses` Bree Olsen and Natalie Kenly in the Bahamas - had not taken care of herself during her pregnancy. She reportedly said: "Brooke had been to 13 rehabs before meeting Charlie. She drank and drugged during pregnancy and had such a party girl rep before she met him." Brooke is currently the primary carer for the children and has promised to take a drug test every week until they turn 18. Meanwhile, Rob Lowe has revealed he and the former `Two and a Half Men` star - who was forced to surrender Bob and Max to police earlier this month - used to compete with each other to see who could party harder. Speaking of time he was filming `Masquerade` and Charlie was working on `Wall Street`, Rob told Vanity Fair magazine: "We competed to see who couple play harder, then show up for work and still kick ass. The verdict: Charlie by a nose."