Kelly Rowland feels sexier since becoming a mother.

The 34-year-old singer says she has lost 20 pounds since she gave birth to her first child, Titan, in November with husband Tim Witherspoon, but is embracing her new curves.

The 'Kisses Down Low' hitmaker said: ''I feel very sexy being a mom. It's not even about my husband or anybody else. Even when I'm by myself, I just feel like a rock star.

''I want to be my goal weight by my anniversary in May. It's not about how I look, I love my curves, I just know how I want to feel. My body operates better when I feel clean.''

The former Destiny's Child star always knew she would be a mother but is in no rush to have more children.

Asked if she plans to give her son a sibling, she told InTouch magazine: ''Absolutely, but at least four years from now. I want to instill in him everything that I can and I want that to be one-on-one because I really want to raise a great man.

''I'm so happy to be Titan's mother. He's awesome, and I can't believe how much I'm in love with him.

''I want him to look at me as an example of what his future spouse should be like.''