how can I get sage getting fucked silly by jett?
you have to complete the first jett x sage scene, then to fix the portal gun you have to go to the shipyard (next to kay/o) and take the parts back to killjoy (do all of this as yoru). you need 6 strength to do this, so grind against the bots to level up enough to add 6 points to your strength (at least this is what i did, not sure if there's any easier way). once you take the parts back to killjoy, she'll fix the portal gun, then you change back to sage to interact with jett and you unlock the scene. hope this helps.