Beyonce and Mary J. Blige share a hug with Erica Reid at a book launch in New York City last night.

The wife of music mogul L.A. Reid, wrote a parenting advice book called The Thriving Child, after discovering that both her children suffered from serious allergies and irritations since birth.

Also at the low-key soiree was Jay-Z, who was photographed playfully touching his wife’s face, his mother-in-law Tina Knowles was there too.

Beyonce recently attend the 2012 MET Gala and made grand entrance in this sheer Givenchy lace dress. During the event, the new mom said she definitely wants more children after giving birth to her first daughter Blue Ivy about four months ago.