According to the insider, there were some difficulties at first as new mums can get a little tense.
The source asserted that with some help from the midwife, the mom-son duo both caught on very quickly.
The royal insider insisted that Kate Middleton, 31, finds breastfeeding very relaxing, while George is just like any other little baby.
The source said that the Prince makes sure everybody knows when he's hungry because his screams are very difficult to ignore.
The source added that Kate feels that breastfeeding is a matter of personal choice and that new mums should do whatever feels right for them and their baby.
Moreover, Kate left Kensington Palace wearing a Blossom Knot Front Lavender dress by maternity wear specialists Seraphine, on Wednesday.