Using Prime mod but I expect this is a native issue related to how threesomes are handled and that Laura and Jubes have events where they will fuck without dismissing your party.
Went with Rogue and Kitty to the mall, Jubes decided to suck muh dik. Undressing her while sucking was fine but changing positions re-clothed her. Letting Jubes do cleanup involves her sprite staying there and Rogue sucking Zero clean. If Rogue isn't told to lick Jubes clean, her sprite will keep sucking Zero. Zero's pimphand is foreground of Rogue's face while she sucks.
So slapping (or, in screenshot form, caressing) Rogue while she sucks dick is possible, so long as you're happy with Jubes or Laura twerking behind her and a third girl just kinda watching.