Take breaks so you don't cum

You don't know how much time you have, but you remember what Amano said about your sexual excitement riling up the crew. You try to keep it as low as possible, but it's slow going. You're only a quarter of the way across the room when Krik returns.

"Really? Is this the best you can do? Let's see if I can find a way to... encourage you. Fortunately, I read the purchase files and know how your body works."

Krik produces a handful of complicated screws of some kind. No -- tiny clamps. Six of these are clamped to the outer edges of your breasts, the inner edges, and directly onto your nipples. Then a fine cord is run through all six to attach them, and the ends of a separate cord tied to the ones on your nipples, forming reins.

Krik takes the reins, stands in front of you, and starts walking.

They're not walking fast, but it takes all of your effort to keep up. Any slackening pace is agony, due to the nipple clamps. But walking has its own torments; the rope tied around your body squeezes around your breasts as it takes the weight of the crate, and rubs over your clit. The weight's distributed enough that it's not horribly painful like the nipple reins, but it is persistent, since you can't stop. About halfway across the room, you feel an orgasm building.