I've seen the character model for Jane but no. Stop me if I get too philosophical here but the reason being is I see Jake as a sort of audience surrogate for the player. Sure we're actually controlling the MC but think about it for a moment. We're playing a porn game that generally speaking most people play with the incest kink turned on. Jake is by definition that person, constantly gaming and lusting after his mom. I'd rather help him than fuck him.
Maybe I've put too much thought into this game.

I guess only
G28Here can confirm whether or not that was a conscious choice on their part.