Ahh I love this genre of hentai games, it's always fun to have some kind of challenge with the erotic content.
Jennifer is extremely hot. Since you're taking feedback, some ideas:
Different outfits maybe, what she wears is very sexy but I wouldn't mind more sluttier options, and different variations of the sex for those outfits. Different hairstyles, as well.
Differing sex acts would be fun as well, like reverse cowgirl, getting jackhammered, giving a footjob would be awesome. Maybe during
I guess like Barely Working you can add different days or something like that. Maybe not days of the week but perhaps events, like Christmas or Easter, maybe different kinds of events.