You suck cock.

Gemma guides the cock to your mouth and the hot, swollen tip brushes your soft feminine lips. Only a short while ago the prospect of sucking another guy's penis would have made you feel sickened, now you find yourself licking your pouting lips in anticipation. You gingerly stretch out you tongue and lick the dark purple crown, tasting the salty and meaty tang of aroused male flesh. You swallow hard, realising that your mouth is salivating in anticipation. You take another lick, the very tip of your tongue probing at the narrow slit of the man's urethra. The cock twitches in response to your exploration, jerking in Gemma's small fist and a milky white pearl of precum squeezes from the aperture.

"Go ahead Doe." Gemma urges. "Open wide and take it into your mouth."

You lap up the little drop of precum then open your lips and crane your head forward. The engorged plum of the cock's tip passes between your lips and you pause, suckling on the rounded head. You hear a moan of pleasure from the man as your soft, full lips close around his cocktip and his enjoyment of the act pleases and excites you. You suck harder, running your tongue around the underside of the glans, which you know from personal experiance to be the most sensitive part of a man's cock. His moan of pleasure is louder and you wonder how long he is likely to last before cumming if he is already highly aroused. As usual you feel incredibly horny and it is only with effort that you resist the urge to drop a hand to your crotch and finger yourself while you suck him. You have already orgasmed and another climax could easily make you revert to a male.

"Finding this a little frustrating?" Gemma whispers the qustion, seeming to know your body's reactions. "You have to concentrate on his pleasure and ignore your own."

You dip your head forward, letting a couple of inches of the cock shaft slide between your lips. The taste of cock doesn't seem so bad at all, vegetarianism never appealed to you and the meaty flavour of dick seems quite pleasent. Your purse your lips and move your head back and forth, letting two or three iches of the stem shaft the tight embrace of your lips. Gradually you allow more of the cock to enter, sliding your mouth further along the shaft each time you move.

"You're taking to this very quickly Doe." Gemma says encouragingly. "I think you'll be a natural cocksucking slut."

You still feel a start of shame at Gemma's words, no matter how true they may be. You silently tell yourself that your eagerness to suckle cock is rooted in your desire to avoid pregnancy and whatever pleasure you're feeling comes from that fact alone. Your movements have quickened, half the length of the guy's penis is sliding easily in and out of your mouth now. The swollen glans are starting to collide with the back of your mouth when you push yourself forward. For the first time you gag when your mouth is filled and the thick blunt head presses against your throat. You try to breathe through your nose and relax your throat to avoid the horrible gag reflex. It takes a few attempts, but you soon compensate, taking the hard cock to the back of your mouth without ****. You suck hard on the shaft, gripping it tightly with your lips as it moves.

"Fuck it ****, harder, faster." The man swears. "I want to fill your bitch mouth with cum."

The man's hand grabs the back of your head, his thick fingers knotting in your blonde hair. He thrusts his pelvis forward, ramming his dick into your mouth and caught unawares you gag badly as his cockhead slams into your tonsils. Your blue eyes open wide wide with shock and you stare imploringly at your mistress, hoping that she'll intervene to curb the man's enthusiasm. Gemma grins at you, evidently amused by your sudden distress.

"That's right, fuck her mouth." Gemma encourages the man.