The spells aren't added to your spell book, just added to the game. I put them in place more as a template for modders to be able to see how to apply the framework to spells.
HOWEVER, you can get them. Easily. Open your game, type ~ to open the console, and type...
help "sexual healing"
That will bring up two spell records, each with an 8 character ID. Still in the console, type...
player.addspell xxxxxxxx
where xxxxxxxx is the 8 character ID for the spell. Do this for both, and you will have both spells in your spell book. They are basically just the Vanilla spells Healing Hands and Heal (I think it's called), but they also increase arousal by some amount on the target when you cast them. It isn't anything flashy.