You grow nervous as she climbs higher onto the play set, worried that the higher vantage point may allow her to see you and what you’re doing. Despite your fear, it seems that you are even more aroused. You stop stroking for a moment, but you cannot help the urge to start stroking again.
You convince yourself that to stop now would be disrespectful to the beauty she is unknowingly sharing with you.
(Continue stroking at any pace for as long as you like)