Double blowjob

"I want those tongues all over my cock!" he said with enthusiasm.

Your legs were still quivering from the lingering sensations of your sisters tongue over your clit, so it took very little prompting for you to drop to your knees in front of him. You were eye level with his meat, and meaty is was! He peaked at about seven inches but had possibly the thickest dick you had ever seen. He was excited too, a little river of precum already dripping from the tip of the swollen head.

"Come on, that's it, suck it down." your sister purred next to you, one of her hands between her legs while another was snaking down between yours. "Do a good job and we'll give you a present."

You swallowed hard as you leaned forward. No this was wrong. Stop. You can't do this! You're supposed to be a guy! All of these thoughts did nothing though to stop your sex crazed mind. Gingerly at first you ran your tongue over the head of his manhood, unsure exactly of what you were doing. This earned a sigh of satisfaction from the man in front of you, a sound that edged you forward. Soon you had taken the throbbing tip into your mouth and were sucking lightly.

"Mmm, good girl... good girl..." Eric said as he craned his neck back and closed his eyes. "You too, babe, come on."

Gwen didn't need any prompting to join you by his shaft. You watched in fascination at she ran her tongue slowly up the underside of his shaft before dragging it down again, both of her hands occupied as they explored both your depths and hers with her finger tips. Soon you pulled your lips free from his cockhead with a small pop, a slutty need to emulate your sister. Between the two of you, tongues danced up and down over his rod. Occasionally you would both lift your tongues over the tip and meet with a slutty kiss, the salty sweet drizzle of his precum still on your lips.

It went on like this for a few minutes. Kisses and licks rapidly turning into lewd slurps and sucking as you lost more and more of yourself to the carnal act. Soon enough his hips were bucking desperately as he felt orgasm drawing nearer. "Mmm, come on, just like that... so close..." he panted gratefully to the girls between his thighs. You could feel his throbbing cock beginning to pulse as he held both of heads close and erupted. White sticky strands of his seed shot up, splattering over your faces, into your hair, and dripping down onto the floor. By instinct you tried to catch as much as you could in your mouth, relishing to warm goo as it splashed onto your tongue and lips, letting you swallow down the salty meal as it was deposited. As the last little pulses of spunk oozed from his rod your sister began to lick over your face to clean you up.

"Oooo..." you purred, his release only fueling your burning arousal. You hadn't had a chance to cum yet and your mind was still under the spell of lust.