Yes.

You're a nice guy really despite exchanging sex for extensions of contracts.
"Cuming!!" You groan as your balls tighten, she's jumped off you as you finish saying the word. Her lips wrapped around the tip of your cock as you cum, her hand pumping the base as you empty your second load down her throat which she yet again dutily swallows. She pulls back and licks her lips before opening wide for you to show its all gone before she jumps up to her feet.
She puts his panties over her wet and slightly red pussy and then finds her bra, she changes quickly as you slips your dick away and buckle up still sitting just watching her rush about you.
"See you, oh and thanks for the orgasm!" She calls whilst beaming before leaving the office.
Woah... You just fucked your first client...