Yes, that's where Sokaku was "cosplaying uncle Dolan". I'm translating from spanish here, he says something like: "Look, I've got something here that turns cyborgs on. It doesn't damage the systems and it's a total steal. Just $150 for five cubic centimetres..."Errrmmm...
Didn't Sokaku try to sell something... erm... "condoms for cyborgs" or-what-ever, to Deunan in 3'rd book's end? (I dunno actually what Sokaku actually tried to sell there... ಠ_ಠ )
It looks like some kind of vial or cylinder, and Sokaku displays them in like a row or chain that makes it look kinda like a pack of condoms. They're most probably something between an afrodisiac and a cyberdrug.
Now look Sard, evidence that Deunan and Bri sleep in the same bed:
Oh, that doesn't convince you? Okay, I made a quick and crappy collage for you: