Jack

After being freed from the prison ship she was kept in, Jack was being brought aboard the Normandy. Onboard the shuttle to the ship she couldn't help but notice the... "handsy" nature of her rescuer.

"What the hell?! Why is this guy groping that Cerberus cheerleader's tits?" Thought Jack. The brazen perverted act confused the hell out of her. Causing her to have second thoughts about the idea of these people being her "Rescuers". Unbeknownst to her, her perplexed look was noticed by Shepard, and her eyes were too busy gawking at the manhandled breasts to notice his gaze.

"Oh right," said Shepard to himself, realizing his error. "This is all completely normal to you, right?"

Jack mentally slapped her forehead. Of course this was normal. She didn't know why she thought it was weird at first. She silently cursed herself, angry that she let herself look like an idiot.

"Yea, of course I know that. She just didn't look like the type."

'She' being Miranda. Who was too busy playing with her clit to notice any remarks made about her. Her focus was solely placed at giving herself pleasure. Her breath pacing itself with the speed of her hands. Quickly and quickly did the pace continue. Desperately trying to reach a climax. Yet, it will never arrive. As she was informed by Shepard that the only way she could cum, was if the commander let her. She could only edge herself as close as she could to that destination, before Shepard gave her the release she deserved.

Shepard merely shrugged at her response. "Well, you never know how people act." A grin appearing on his face. "I mean, you yourself surprised me."

"Surprised you how?" Asked Jack, her guard getting up.

"Well, you're still wearing the pants the prison gave you. I figured you'd want to take them off as soon as possible."

Jack couldn't believe him. How'd he knew her that well? She didn't want to admit it, so she tried to deflect his correct assessment.

"I just don't want to do it with you around." She came up with a flimsy excuse. The truth was that she didn't care about. She wanted to take those pants off right then and there. Shepard be damned.

"Ah I understand. Don't worry, I won't **** you to do it. Even though I know what will happen if you don't."

Jack started to worry. "W-what? What are you talking about?" She asked. Shepard got everything right so far. What else could he know?

"Those pants have a pheremone that only activate when it comes into contact with your skin. Since you've been wearing them for a while now, they've already caused some permanent changes to you."

Immediately Jack took off her pants. In fact, it was more accurate to say that she threw them away. Leaving her body to be attempted to be covered by the flimsy harness she was wearing. It didn't do that much of a good job.

"Fuck... what's going to happen to me?"

"First, it will cause you to hate wearing any kind of clothing that isn't slutty. That harness you're wearing is a good start, but what you'd really want is to wear collars with derogatory remarks on them, anal beads, vibrators, nipple piercings, and high heels. I have them on the ship so you don't have to worry."

She breathed a sigh of relief. Shepard was proving himself to be a trustworthy man.

"Second, you can no longer be satisfied with how small your tits are. You want to get them at least as big as your head now, that's the bare minimum. You also want to accentuate your ass as well. So getting a lot of squats in your agenda is a priority. The Normandy has facilities for both."

Jack looked down at her body. He was right. She was thankful there was a solution.

"Lastly, the third and final effect, you will continuously need to suck a dildo to maintain your intellect. The longer you don't, the dumber you get. You will slowly act more and more a a vapid bimbo. You've been in cryo so the effect won't flare up for now, but you will need to suck on one on the Normandy."

"How am I supposed to function then? I can't be sucking on a dildo 24/7."

"There is a way to momentarily stop the process. You just have to ingest my semen. That'll make you immune for around 3 hours."

Jack started to be uncomfortable. Shepard had been nothing but nice to her, but is that really the only way? She thought to herself.

"That should be easy for you, since you love the taste of my cum. That doesn't mean I'll just give it you, you'll have to earn it. Don't worry, I won't ask for anything too much. You just have to my lifetime sex doll, which you love being anyhow right?"

"Yeahhh..." said Jack, embarrassed she was seen through that easily. She always had her guard up after having her trust betrayed too many times. Yet, here was this guy, who understood her so well from such a short amount of time. Especially how kind he was to let her be his sex doll. She never thought she'd meet someone who was that magnanimous.

"You can start your new life now." Said Shepard, as he exposed his erect member to Jack. Wasting no time, she started sucking his cock all the way to the base of it. She let it stay in her throat for several seconds, barely able to breath from her own greed. Drool and spit began to accumulate. Jack was giving him the messiest blowjob she had ever given. Bobbing her head back and forth from his delicious cock. The various fluids dripping down to her chest. Soon Shepard was close to his climax, while Jack had already done so multiple times during her face being fucked. A massive load of cum released down her throat, giving her **** but swallow it. There was so much of it, so much so that she couldn't take all of it. Some of his cum leaked out of her mouth. Painting her chest white. She loved every second of it. Grateful at Shepard for letting her drink his cum, and for taking her in as his sex doll.