Quite a lot of stuff here for a three day game. My biggest complaint is that the guys are not actually in the tub. I think even the images are roughly the right size and angle for that to happen, they just need to be a little higher up in the screen.
The flirty writing is good and I like the back and forth style of it. I'd like some sort of additional cue as to how the other guy feels about the flow of the conversation. It tends to loop back to the same sort of tone and I can't tell if he's been offended or is playing hard to get. Some sort of reference to the choices you've made in future lines of dialogue might help it feel less like a test.
I know that it wasn't in the time budget, but mid-conversation pictures would do a lot to spice up this type of game. Cut-in images of the guys checking each other out or the scenarios they're imagining. It would give a more bouncy pace to the flow and offer reasons to try different routes.
Impressive for a backup project, but please skip the "Hot", "That Time in a Tub" rolls off the tongue so much better.