Liam Hemsworth, Kelly Ripa and Michael Strahan
11/20/2013 AT 06:30 PM EST
The conversation that parents have with their kids about the birds and the bees can be uncomfortable, but for Liam Hemsworth
, it got taken to a whole new level of awkward – his mom, Leonie, was also his sex-ed teacher at school.
The Hunger Games: Catching Fire
star talked about his embarrassing experiences during an interview on Live with Kelly and Michael
"I was in her class – I would come in for the first part of it and leave half way through," he admitted about his school days back home in Australia.
"That must have been awkward," Michael Strahan
"Ah, yeah, a little bit. You'd think it would be, wouldn't it?" Hemsworth, 23, replied. "You have your mom talk about sexual stuff, it's not a class I'd like to be in."
"Did she ever call on you or anything?" Kelly Ripa
"I used to put my head down most of the time," he said. "We had this one time where we were given out cards of different sexually transmitted infections and you had to stand up and talk about the card and she picked me out of the whole room. It was like, 'Well, I have chlamydia … thanks for this, Mom. Good class.'"