Yes

She thinks for a minute.

"Ok fine you naughty boy! But thats all. Show me what you got" she motions at your pants.

"YES!" you shout. And with boyish exitement, you pull your pants down, and your fully erect penis swings out.

"Matt!" Claire shouts. "Look at that little guy! You naughty boy!" Your penis wasn't very big. Only about 4 or 5 inches.

Both of you now naked, your babysitter knees infront of you and places one hand on your ass, the other on the base of your cock so she can guide it in her mouth. She takes the whole thing in on her first try, her throat warming you, increasing pleasure. Then she starts going faster, taking most of your cock each time, and licking all your sensitive spots. You moan and grab her head to go faster.

"Oh Claire God yes! Youre so good!"

Your encouragement makes her go faster and you feel yourself about to cum so you push her away.