Pregnant actress Olivia Wilde has shamed subway riders on Twitter for not giving her a seat.

The former House star, who is currently expecting her second child with comedian Jason Sudeikis, vented her anger in a sarcastic tweet after nobody on the New York City subway gave up their seat for her despite her large bump.

"NBD (no big deal), able-bodied (subway emoji) riders who won't give your seat to a GIANT preggo," she tweeted, before adding how she planned to seek revenge on her fellow riders, "I'll just stand riiiiight (sic) next to your head and pray I go into labor."

Her comment sparked responses from other travelers and she shared what one man wrote; "1. I didn't tell u to get pregnant 2. Get an (taxi) Uber (you can afford it) 3. I paid the same amt (amount) as you for the subway ride."

The actress blasted the user by replying, "1. Eat a bag of d**ks... 2. That is all."

The 32-year-old announced she was expected a sibling for her two-year-old son Otis in April (16). She posted a black and white photo of herself sitting cross-legged on a bed beside Otis, with their stomachs on display, on Instagram. She wrote in the caption, "Matching baby bumps".

She recently told Yahoo Beauty she was struggling to resist unhealthy food with her second pregnancy and wants to eat everything she gives Otis.

"It’s super hard, and certainly for the second child, I think it’s a little harder to stay healthy," she admitted. "You’re feeding your first kid chicken nuggets and mac and cheese, and it all looks so irresistible... I’m making baby steps towards a healthy lifestyle this time around."

Olivia and Jason first began dating in November 2011, before getting engaged in January 2013.