Michael Turchin, Lance Bass's spouse, welcomes twins

The twins Violet Betty and Alexander James,

he couple's first child, were born on October 13 through surrogacy

 *NSYNC alum and husband Michael Turchin revealed on Instagram on Thursday.

In contrast to her brother

 who was born at 18.5 inches long and 4 pounds, 14 ounces in weight

Violet was born at 17.5 inches long and 4 pounds, 11 ounces. 

Alexander was born, one minute ahead of his twin sister.

 which featured their little footprints stamped on them.