Sierra is pregnant and her hormones have her doubting her mans loyalty. She seduces him into a hot handjob with promises of a surprise at the end. Once he explodes in her soft hands Sierra grabs a chastity device from the drawer and convinces him to put it on his cock. After she locks it she teases him and makes his cock swell in the device. Sierra keeps up the torment until she realizes she is late for an appointment and leaves him there to suffer in his cage. It's going to be a long 9 mos for him I guess.