Hilary Duff is ''practising'' looking after babies again ahead of the birth of her own child.

The 30-year-old singer-and-actress revealed on Friday (08.06.18) that she is expecting a baby girl with boyfriend Matthew Koma and the 'Younger' star - who already has six-year-old son Luca with ex-husband Mike Comrie - is getting ready for the new arrival by spending time with her sister Haylie Duff's daughter Lulu, who was born earlier this week.

Hilary posted a photo of herself cradling Lulu on Instagram and alongside some heart emojis, wrote: ''Getting practice with Lulu (sic)''

The 'Come Clean' singer took to Instagram a few days ago to share her excitement to be expecting a ''little princess''.

She shared a photo of herself and Matthew sharing a kiss while her maxi dress showed off her growing baby bump.

The post was captioned: ''Guess what guys! @matthewkoma and I made a little princess of our own and we couldn't be more excited!!!!!!(sic)''

Her 31-year-old partner shared the same photo and wrote: ''We made a baby girl! She will be as beautiful and sweet as her mother ... @hilaryduff another incredible chapter begins.(sic)''

Hilary and Matthew started dating in 2016 but had some ups and downs and split twice before she confirmed in December they had got back together and were hoping that ''third time's a charm''.

She said of their relationship: ''It's going so great... It's the third time that we've dated. Timing is such a big deal... third time's a charm!

''I think that you have history and a past with someone and love, and just because it doesn't work out the first time, the second time, as long as there's not too much damage done, then, it can always work out again.''