Queen B: Beyonce's twins were delivered by Kim Kardashian's doctor! (Details)

They may be reports of a strained relationship between them,however,Beyonce and Kim Kardashian have one thing in common.

TMZ has revealed that the doctor who pulled off the delivery of Beyonce's twins is Dr. Paul Crane, the same guy who delivered Kim and Kourtney Kardashian's 5 kids ... and Rob and Blac Chyna's little girl, Dream.

According to the birth certificate ,Rumi Carter is the big sis and Sir is the little bro.They were born on-- June 13 at 5:13 AM. Rumi came out first, and Sir followed shortly thereafter.

They also don't have middle names.