Watch and wait for Sarah

You stay in the shadow of the lockers and watch Rachel in the shower, your hard-on nearly bursting through your pants. Rachel stretches her arms over her head, soaking her reddish blonde hair under the shower. Suddenly a slender hand grabs your hard cock through your jeans. You jump back, and Sarah is behind you, one hand reached around and resting on your stiff crotch.

"Shhh," Sarah whispers, close in your ear. "Isn't she beautiful? Rachel always stays late after gym class. I like to come here and watch her. Just wait."

Sarah bites your neck and opens your pants, sliding her little hand around your cock. She rubs her sweet teen body against you from behind, and from the low moans in your ear, you know she's touching herself back there. "Watch," she whispers.

Rachel looks around the showers to make sure she's alone, and then leans back on the tiled wall, spreading her legs under the pounding shower spray. With Sarah's hand stroking your dick, you watch Rachel soap her sweet little titties, humping her pussy into the hot shower.

"I always come here to watch Rachel and get myself off." Sarah whispers. "Rachel doesn't know. Now with you here, this will be even better!"

Sarah leads you by the cock to a low wooden bench and sits you down on it. Then the brunette teen pulls down her jeans, and sits on your lap, pulling her panties aside. Sarah mounts your cock, straddling your lap and impaling herself on your thick meat. Her pussy is wet from watching Rachel and slides easily up and down your shaft. Sarah leans back against your chest, with her hands behind her on the bench.

"Can you see okay?" she pants, riding your cock up her tight, slippery pussy.

In front of you in the showers, Rachel is fingering herself under the shower, one hand rubbing her little clit while the other explores her soapy pussy.