Sienna Miller and Tom Sturridge—Sans Baby Marlowe—Step Out for Day Date in NYC

Engaged couple has been lying low since birth of first daughter in July

Sienna Miller and Tom Sturridge are new parents to 4-month-old Marlowe, but that doesn't mean they don't make time for just the two of them.

On Thursday, the 30-year-old actress and her 26-year-old fiancé held hands in NYC during an adults-only day date. While the doting duo have been lying low since the birth of their little daughter, they took the opportunity for some quality one-on-one time with each other.

Just recently the supercute new parents shared a smooch over breakfast in London with baby Marlowe in tow.

Could their little family be any cuter?!