Samantha "Sam" Arias (Supergirl)

"Hold my hand. You feel that?"
"Your pulse?"
"It's you. YOU are my heart."

—Samantha Arias to Ruby Arias.

Samantha "Sam" Arias (born 1979) is a former Kryptonian Worldkiller known as Reign, who was sent to Earth prior to Krypton's destruction and found by Patricia Arias, who raised her as her daughter. As an adult, she briefly became the acting CEO of L-Corp, before transitioning to a position as the CFO though she still partly holds the former position on the behalf of her employer Lena Luthor. Sam is the single mother of Ruby Arias. She remained unaware of her origins until her powers started to manifest, leading to the emergence of one of the strongest adversaries whom Kara Danvers ever had to face as Supergirl.

After Purity and Pestilence awoke, Reign noted that her human self Sam was much stronger than she thought as they fought for control.

How does Sam end up naked ?