Pregnant Kaley Cuoco left tongues wagging after posting her baby bump pictures.

Cuoco shared precious moments she had with her boyfriend, Tom Pelphrey, on Instagram.

The actress posted a carousel of polaroid pictures of her rocking her baby bump.

Cuoco turned the heat up dressed in an oversized unbuttoned striped shirt.

She left much to the imagination, revealing bits of her cleavage and her protruding belly.

Her baby daddy, Pelphrey, also looked hot, wearing only floral print shorts.

Impressed fans rushed to her comment section and sent lots of heartwarming messages.

The "Flight Attendant" actress was filled with mixed emotions as she celebrated her 37th birthday.

Cuoco dedicated a shout-out post to the "Ozark" actor following a romantic gesture he pulled off.