Rochelle Humes says kissing her baby goodnight is her ''favourite thing''.

The Saturdays star - who welcomed her first child with JLS singer Marvin Humes on May 20 - has developed a strong maternal instinct and loves nothing more than spending quality time with daughter Alaia-Mai at bedtime.

The doting mum wrote on Twitter on Thursday evening (31.05.13): ''My favourite thing in the world is kissing my baby girl goodnight xx (sic)''

Meanwhile, it looks as though little Alaia-Mai has already struck up a friendship with fellow Saturdays offspring Aoife Belle - Una Healy's 14-month-old daughter with rugby player Ben Foden.

The redheaded beauty visited her bandmate with her baby in tow and revealed that the tots hit it off.

She tweeted: ''So good to see @RochelleTheSats and Alaia-Mai today! Aoife Belle was stroking her hair while Rochelle was feeding her, was so cute :) x (sic)''

Rochelle, 24, also tweeted about the play date, adding: ''Loved all my visitors today @UnaTheSats @gemdxb @LukeHendersonW1 Alaia-Mai loved seeing you all ♡♥ xx (sic)''

Una, 31, previously described Alaia-Mai as ''absolutely beautiful''.

She told BANG Showbiz: ''We got to visit her baby, Alaia. She is absolutely beautiful.''

Aoife Belle and Alaia-Mai will soon be joined by a third mini-Saturday as band member Frankie Sandford, 24, is currently expecting her first child with soccer player Wayne Bridge.