Great update! Love the sounds though i would add an ability to adjust the volume for the voices and the music since for the breast fondling the music drowns out the moans.
Additionally, maybe have it so the moans become more intense the closer you get to finishing a bit.
Last thing on the sound (and this one is more a nitpick) is maybe finding different moans for the jerking off segment. Heavy panting paired with seductive giggles and quick fapping sounds instead of reusing the blowjob audio. maybe even have her whispering little commands for you to hurry and give it to her.
Something else would be adding a freeplay gallery that unlocks as you complete segments that allow you to replay them as you wish for as long as you'd like swapping between intensity levels.
Now all that aside. For more complex ideas, I think a fun mechanic would be to add a bit more real time engagement in the sex. For example, during the doggy style section, give the player the option to spank Jennifer to increase her patience meter quicker at the risk of making her moan loud, thus potentially attracting the husband to the room.
Along with this, if you plan on going further with more levels, I'd make the game play loop be balancing pleasing Jennifer and not getting caught. Maybe for the first level, actual sex scenes are optional to get rather than part of main progression. You only get full sex with her if you've pleased her enough (Through playing with her breasts or eating her out) before the level has come to an end
That way you can save more positions to be required for later levels. Maybe be able to convince her to do anal, titjobs, cumming in her raw (Condom on or condom-less depending n how you preformed)
different levels could have more interactive scenes through the house, like fingering her at the dinner table, having sex in the shower, or even in bed next to her husband.
overall, I liked this update, and I look forward to wherever you take this project.