You can feel whatever weird drugs or chemicals they pumped this poor woman full of to turn her into a mindless slut mixing into your very DNA. In spite of the control you force yourself to maintain, you begin to feel yourself change in some way. You feel sexier. Naughtier. More compelling. If you manage to somehow escape this perverted situation, you know that you won't be that same person you were when you started looking for that key. Speaking of which, a thought occurs to you that fills you with regret. Regardless of whether a woman who's hands were permanently strapped to a minigun could somehow find the manual dexterity to hide a key in her snatch, that would be pretty impossible if her suit didn't have some way of her reaching her cunt to begin with. While you slid into her suit to get yourself into this situation, you probably could have just looked for a zipper and dug around with your hand. Forgetting even the fact that she would have to do things like use a restroom in this get up, she's also a masochistic slut for a sex cult. There would be no way that they would leave no access to her nethers.
But regret could wait. Since there surely had to be a zipper, then maybe you could use that access point to escape. It wouldn't be easy, with the worlds hungriest pussy holding you down, but it would certainly be better than trying to work your way up the suit again. And if you could open up that part of the suit, it wouldn't be pushing you back in. It's a shame that the guard is outside your cell and not Sidney's, as maybe she could help push on the guard's stomach or something.
Spoiler (click to show/hide):
Perk gained!
Biological aphrodisiacs: Absorbing this means that you have an easier time seducing targets, with a cumulative bonus for every time you have sex with the same target. You also gain a +1 Cha. The trade offs are that the pheromones will compel more people to try and rape you, cause sometimes peaceful NPC to lose control until the have sex with you. Your own libido will sometimes rise as well, causing you to roll Wis vs your own Cha to keep yourself in check.