Just let her relieve the tension...

You close your eyes as she rubs against your crotch, fishing inside your boxers until she pulls your cock free.
"Lucy...I don't think I can..." you swallow.
"Relax... we'll start small." She looks down, and her eyes widen. "Okay, 'small' isn't really the right word..."
She gives you a very tongue laden kiss before shoving a finger down her throat, gagging a little. She then spits the resulting saliva onto your cock and her hands, stroking your cock while she looks into your eyes.
"Just let me work out some of this tension, baby, and we'll see where it goes from there."
You let inertia carry you to a standing handjob, and Lucy makes approving sounds as she works your cock with both hands. "Such a nice specimen. You should be proud of it, James!" She kisses your chest, licking and nibbling your nipple.
You can't help running a hand through her blonde hair, and you lean back a little against the dryer. It feels too good to want her to stop, now.
It's no effort all to let her slide to her knees. You continue to stroke her hair as you feel wet lips wrap around your cock. She envelops the whole tip in the first go, lips hugging the sensitive spots just below the ridge of your helmet.
"Fffffuck...." you shudder out, running both hands through her scalp and pulling her hair up and out of the way. You're in it now...