Amber Rose uses her son to work out.

The 'School Dance' actress credits her toned figure to playing with 16-month-old Sebastian - who she has with husband Wiz Khalifa - and using him as a ''weight'' to exercise.

She said: ''I play with my son a lot. I actually use him as a weight. He's like 32 pounds. I just throw him up and down, swing him around a lot.

''Basically, he's always on my hip.

''Just picking things up off the floor while holding him is like doing squats.''

Earlier this week, Amber posted a picture of herself kissing Courtney Love and says the Hole rocker had ''sweet and juicy'' lips.

She told E! News: ''How epic is that? I was like, 'Courtney, can you please kiss me for a picture?' She was like, 'F**k yeah! Let's do it!' Her lips are really sweet and juicy.''

And the 30-year-old beauty also recently posed with Justin Bieber and insisted the 'Believe' hitmaker was ''really nice''.

She said: ''He was really nice. I've met him with my husband plenty of times at awards shows and stuff like that, but we were just out at the same club the other night and he came up to be and was like, 'Can I get a picture with you?' and that was it. It was just really normal.''