You're attention is diverted by the pang of pain of your stiff cock at it's limit of erection.
The nurse assistant glances at your cock and then back to you with a blush and says, “Ok, so I couldn't get you to cum while you were asleep. I could definitely use your help with this”, as she proceeds to straddle over you with your cock touching her glistening pussy lips.
You made an effort to comply, thrusting your hips upwards and plunging your engorged cock deep into her surprisingly tight pussy thoroughly lubricated with her premature cumming.