Charlie.

After securing you to the bed, by way of her crotch on your face, Terri wriggles herself against your nose before helping Charlie out by holding your feet up, turtling you awkwardly.

A moan escapes your lips into Terri's lower lips, when a more familiar third set of lips seal around your cockhead. "Terri, Charlie, stop. Please," you plead, trying to force her off, but you do not have the upper body strength. And your leverage has been taken away from you, by Charlie pushing up against the back of your thighs with her shoulders as she slides her tongue up and down your shaft.

Your protests fall on deaf ears. Scooping your legs under her arms, Terri leans down and nudges her roommate's head out of the way to get her mouth onto your cock too. For a long moment, you feel their lips meet and their tongues dart around each other at your cockhead, making you groan loudly. Terri helps herself to it while Charlie works your shaft and sack, rolling it around in her mouth, before they swap over. Beads of Terri's juices drip all over your chest, spreading out widely thanks to your futile squirming.

Thinking quickly, you coat your fingers in your own spit and, jamming them into Terri's pussy, work them furiously. She moans sweetly on your cock, but you power through the pleasure, trying to get her to cum as fast as you can. "Looks like someone's finally in the mood," she grins, winking at you from between her breasts. Sitting up, she forces you to remove your fingers, for concern of damaging your wrist. You compensate for that by shifting her hips backwards a bit, so that you can eat her out instead. Shivering and grunting, she posts herself up on your chest and your legs fall down.

But before you can do anything, you feel a weight drop onto your hips, and warm wet walls envelope your cock. There is a miffed exhale from up above, shortly followed by movement and pleased moaning down below. "Ooh fuck... that's some good dick right there..." Charlie moans, sounding slightly muffled through Terri's thighs.

"Just don't forget that he's MY boyfriend eh?" Terri replies, dropping her hips further, suffocating you.

"OUR boyfriend now Terri," Charlie counters, rolling her hips against yours, "remember we agreed to share. Oh... but yeah... I can see why you didn't want to... fuck, he feels so much better than all of my ex's."

Feeling your tongue graze her clit make her flinch as you munch your way free to fresh air. Her hips jerk upwards for a moment before you yank them back down and go to town on her nethers, while trying to match Charlie's rhythm with your thrusts, in a desperate attempt to get one of them off before you.