Pregnant Hailey Bieber shows off baby bump in SEE-THROUGH outfit

This Saturday, weeks after joyfully breaking their big news, Hailey showed off her bump in a skintight, translucent black lace number.

Balancing expertly on a towering pair of heels, the expectant mother accented the look by wrapping herself in a long black leather overcoat.

Meanwhile Justin wore an even wilder ensemble – including a massively baggy pair of white shorts that slid down to reveal a set of scarlet boxers.He teamed the shorts with a matching t-shirt and occasionally augmented the look by pulling a tan sweater over it.

Allowing a healthy dose of scruff to sprout over his unmistakable features, Baby singer lent himself a bit of shade with a baseball cap.

Hailey’s walnut brown hair was swept into an elegant updo reminiscent of the 1960s, and she accessorized with a sleek pair of dark shades.

The massive oval-cut engagement ring Justin gave her – rumored to have cost $1.5 million – could be seen glittering on Hailey’s left hand.

For their latest outing, Justin and Hailey were accompanied by her best friend, the singer Justine Skye, who was snappily attired in a black vest-blouse and sleek white jeans.