I think you get a different scene based on whether you throw your phone to the left or right, one gives you the scene at the end of page 3 and the other the first on page 4. not 100% sure if this is right though.
Yes you are right, when you throw the phone on the right side where Suzie comes and sits down and you go take it by yourself and then later in the wet dream Suzie will be sucking you but if you throw the phone on the left side, Clarissa will be sucking you, you'll get both the nightly seduction's scene with Suzie and with Clarissa.