Ophelia has a serious problem that affects her sex life: due to her strong gag reflex, she is unable to properly suck her boyfriend's dick. Therefore, she makes an appointment with a sexologist, Dr. Fiddler, who is a highly qualified specialist to solve this problem. Dr. Fiddler has developed a program for dealing with such cases. As part of this program, he ties Ophelia up with ropes, creating an eight-figure rope bra, which makes her to be obedient during the training. A leather collar around her neck creates a suitable atmosphere for the session. After she is securely tied up, Dr. Fiddler suggests that she try several different penis gags, starting with the smallest one. First, he slowly inserts the gag into her mouth and moves it back and forward. Ophelia can't hide her slutty nature and automatically starts to suck on it. Continuing the warming up, he stretches her mouth with a big ballgag to prevent a lockjaw. After she becomes accustomed to it, he gradually replaces it with a larger penis gag, shoving it deep down into the throat.  After that is the turn of the ring gag, that makes her drool all over the place.  Dr. Fiddler plays with her tongue, thrusting fingers into her mouth as deep as possible. Finally, he reaches the inflatable gag. Dr. Fiddler slowly pumps it, filling her mouth completely.  He adds nipple clamps and pulls it down with rope.  Doctor stops at the biggest penis gag and seals her mouth with it. After this, he ties Ophelia's in a hogtie. This allows her mouth to become accustomed to the large and thick gag and her boyfriend's dick. We are confident that she will provide excellent blowjobs in the future.