I'm kinda with you on that. The characters are actually interesting and have fun dynamics between each other.Maybe it's just me but I'm not playing SS just for the sex scenes. Aside from the minigames (which I skip with cheat mode), I actually find the game rather fun to play.
Kinda like how I play Opala games, Roundscape or Dual Family for the gameplay or story and not the scenes. They're just a bonus to an already interesting story.
Sex scenes aren't necessarily the cherry on top, more like ice cream on top of a perfectly good cake.
Pregnancy's the cherry on top.