Taking to the Facebook page of popular parenting blog Mama Bean, Jessica shared a candid photograph of herself smiling at the camera as the two boys nursed.
She wrote: “My son on the right is 16 months and my friend's son is 18 months.
“I watch her son while she works and have been feeding them both for a year!”
She added firmly: “So much love between these milk siblings, it's a special bond between us all.”
The photo, which has been liked almost 498 times, appears to have left the Facebook page’s community divided.
Some have praised it as a ‘beautiful thing’, whilst others have insisted that women should never breastfeed someone else’s child.
“Yeah I don't know how I feel about this. I truly believe it is a sacred bond that should only be shared by mother and baby. I feel breastfeeding someone else's baby is totally over stepping,” wrote one.
Another mum admitted: "I would be so upset if some one feed my babies I am their mum and I would feel so wrong to feed some one else baby."
Mama Jessica says:"My son on the right is 16 months and my friend's son is 18 months. I watch her son while she works... > >
Posted by [Mama Bean - Unconditional Attachment](https://www.facebook.com/pages/Mama-Bean-Unconditional-Attachment/1432253050324038) on [Saturday, 8 August 2015](https://www.facebook.com/permalink.php?story_fbid=1675897192626288&id=1432253050324038&substory_index=0)
Another wrote: “Beautiful chain of motherhood passed down from the very first humans. Love this!”
"Wet nurse. As long as her friend is ok with it, then it's perfectly fine. Just like having twins.... I bet she is using mad calories nursing two!” raved another.
Realising that her photo had caused something of a stir on social media, Jessica told Mama Bean’s Louise: "I asked permission to nurse him, since I was already nursing my 3 month old.
“[My friend] responded with an enthusiastic yes, because he was having issues with the formula his previous sitter had been giving him.
"My friend struggled with breastfeeding in the beginning and succeeded for 9 months. She was always very happy that her son had the nutrition and comfort he needed while she was working.
"Being able to breastfeed her little boy has created a special bond between us all, a bond I will always cherish."
Would you be comfortable with another woman breastfeeding your child?
Let us know via Facebook or Twitter (@CloserOnline) now.