Yes

You take pity on the poor girl and resume fucking her with your finger. Your cock aches in your pants as you watch with a bit of jealousy as you take this stranger over the edge. She wraps her hands around you and bites your shoulder to keep quiet as her orgasm rocks her body. Her quiet and gentle moans of pleasure are audible to only you over the noise of the party, and no one notices your little encounter in the corner.

After a few moments she is able to compose herself, and you take your wet finger out of her.

“I hope that wasn’t too torturous Clark! That felt really good, I liked having you watch me cum” she said with a bit of a giggle. She grabs your hand wet with your juices and makes you put the finger that was just inside her into your mouth. As you get your first taste of the Candy Striper, your cock throbs in your pants. She gives your hard cock a gentle pat through your costume and says "I'll definitely return the favor later if I get the chance!"

And with a smile and a wink she’s off in a flash, walking back into the crowd, leaving you throbbing and aching. By the time your erection is no longer noticeable she is nowhere to be seen.