After getting drunk at a party, San finds himself in a stranger's bed. Even worse, that stranger is an alpha and has marked him, using that mark to control and hurt him. Caught between his boyfriend, Yeosang, and this stranger, Wooyoung, San's life is turned upside down. However, no matter how hard he tries to hide it, part of him - or is it all of him - craves Wooyoung's simple touch. Omegaverse AU! (Alpha Wooyoung, Omega San) Warnings: smut (chapters marked with an M), swearing, angst