Sophia Bush: Lady Gaga and Taylor Kinney Are 'Such an Amazing Couple'

Even Sophia Bush is a Little Monster!

PEOPLE caught up with the Chicago P.D. star at the Entertainment Weekly/PEOPLE upfront bash, where the actress dished on Chicago Fire pal Taylor Kinney’s engagement to Lady Gaga.

The Casts of Chicago Fire & Chicago P.D. Spin for Charity

A little friendly competition never hurt anybody – in fact, it can do a lot of good.

The casts of NBC’s Chicago Fire and Chicago P.D. battled it out at cycling studio Flywheel in Chicago on Sunday to benefit families of police officers, firefighters and paramedics who have lost their lives in the line of duty.

Sophia Bush: Watching My Racy Roles with Mom Is 'Super, Super Awkward'

She currently plays tough detective Erin Lindsay on Chicago P.D., but Sophia Bush’s first big-screen role wasn’t so parent-friendly.

“The first time [we watched her] was in Van Wilder,” Bush’s mom, Maureen, tells PEOPLE. “Kissing Ryan Reynolds, her butt in the air we were like ‘Whoa!’”

While mom calls it “awesome” but a “shock,” the actress, 31, recalls the movie-watching experience with her parents as “super, super awkward.”

Sophia Bush Wears Skintight See-Thru Corset in Sexy Magazine Spread

Don’t let Sophia Bush’s demure public demeanor fool you.

The Chicago PD star, 31, has a sexy side and she showed it off for Maxim in its issue that hits newsstands on March 25.

Sporting a skintight see-thru corset (a different photo not pictured shows Bush stripped down to black lace panties with her arms covering her chest area), the actress eventually took the attention off her svelte physique to talk all things work.