Kay joined Shine Wrestling in 2012. She debuted on the inaugural show, forming a tag team with Taylor Made, and the duo defeated Tracy Taylor and Su Yung. April Hunter was later added to the alliance, with the trio calling themselves Made in Sin. At Shine 7, Made in Sin defeated Taylor, Yung, and Tim in a six-woman tag team match. With the addition of Rain and Ivelisse Vélez, the stable became known as Valkyrie. At Shine 8, Valkyrie defeated Amazing Kong, Angelina Love, Christina Von Eerie, and Mia Yim in an eight-woman tag team match. At Shine 10 in May 2013, Kay defeated Nikki Roxx in a qualifying match for the Shine Championship tournament. When Kay interfered in the main event match between ally Rain and Angelina Love, she was suspended by Lexie Fyfe for 90 days and removed from the tournament. Kay returned at Shine 13 on September 27, teaming with Ivelisse to defeat Jessicka Havok and Amazing Kong, after accidentally clotheslining long-time ally Havok. On the following show, Kay attacked Havok, leading to a singles match at Shine 15, which ended in a no contest. After their next match ended in a double count out, Kay and Havok faced off in a Ybor City street fight in April 2014, which ended in a no contest when Havok was struck by a car as part of the storyline. The rivalry between Kay and Havok culminated in Last Woman Standing match at Shine 20, which Kay won. At Shine 30 on October 2, 2015, Kay defeated Saraya Knight in an anything goes match.