It's no surprise that Justin Theroux
fell for Jennifer Aniston
after shooting Wanderlust
– especially given the amount of screen-time the actress goes sans clothes.
"Yeah, there was a lot of [nudity]," Aniston, 43, tells ET Canada
. "Bottomless, topless. Yeah, there is. It's happening."
Aniston, who stars alongside Paul Rudd, says her nude scenes fit "the spirit of the movie," which follows the journey of a couple making the transition from living in Manhattan to a rural commune.
" 'Liberating' is a good word to use," she says of her character's journey in the buff. When it comes to dealing with the other actors taking off their clothes, she says she just "figured out how to throw on a pair of sunglasses."
There was another accessory she got used to seeing on-set: a prosthetic penis, used by actor Joe Lo Truglio. Her reaction to the, um, prop? "You're mesmerized," she says.
Rudd says he "was too busy looking at Joe Lo Truglio's penis" to notice any sparks between the Aniston and Theroux. The actress says it's "bizarre" seeing her character's relationship with her beau unfold in Wanderlust
before the couple started dating last summer
"I mean, at the time, we didn't think about it at all," she says. "Not until months and months afterward."