So, you're driving this boat and Ember Snow is your passenger.  No big deal, right?  That is until she starts sliding her hand down her pants and then demands you stop the boat.  She wants to strip naked and indulge in a little mutual masturbation with you.  She wants to watch you stroking your cock at the same time that she's playing with her pussy and making herself cum multiple times.  But you absolutely cannot cum until she is ready.  Don't shoot too soon, Ember can be very demanding.  Especially when she's on your territory.