If it seems like Jennifer always waits until after sex to ask Matt to do something, it's not your imagination. Due to the structure of episode 9, it was really the only way to work a sex scene in, but it seemed to be a telling character trait so I made sure to do the same thing in episode 6, even though that one already had the sex scene covered.
I do seem to have a penchant for costume porn (that is, spending time describing clothes, not girls in cosplay having sex, although I like that too). This is what I based Jennifer's dress on.