Yes, definitely let her give you head.

"Then, I'm all yours," you tell her.

"Good. Now lean back and get those pants down."

Reclining your seat all the way beck, you shuffle your pants and briefs down to your ankles. Miki smiles, contemplating the sight of your naked erection as a cat might study a wounded bird. Leaning over, she firmly grasps the base of your rod in one hand and, with as much care as a drunk person can muster, begins to lick and tease your glans with her tongue.

You lay a reassuring hand on her back, watching her take your organ into her mouth for the first time. You cringe a bit at the contact with her teeth, but otherwise Miki manages to engulf you with wonderful skill. Her cheeks pucker as she sucks on you, head bobbing in an awkward but exciting rhythm. Her hand, still gripping the base of your cock, squeezes you to the same rhythm, encouraging the first drops of pre-cum to seep into her humid mouth.

"It feels great," you assure her, rubbing her back with your hand and combing your fingers through her loose ponytail.

Miki, too occupied to respond, continues to suck you with brazen urgency. Her eyes are closed, and her free hand clutches at your thigh to keep her balanced above your lap. You close your eyes as well, giving in to the sensations, lifting your hips to penetrate her mouth even further. Miki gags a bit, but keeps her composure despite her condition.

"I'm so close," you warn her, feeling the tightness in your balls, and the tension rising within you.

Miki doesn't let up for a moment, never lifting her lips from your flesh. She must be able to tell from just the tension in your body what she's doing to you. Catching your breath, you find yourself raising your hips and feeling the familiar pang of the moment-of-no-return.

Miki makes a stifled laugh as the first jet of warm semen invades her mouth. She remains frozen in place, eyes wide, as each salty pulse spills onto her tongue.

"Oh, my, God," she moans, hands to her mouth as she finally releases your moist and softening organ. "I'd nearly forgotten what that tastes like. Ungh."

You have to laugh yourself, thoroughly enervated by the orgasm Miki gave you.

"You rule, Miki," you tell her, putting your seat back upright.

"I'm glad you're happy," she smiles. "I don't exactly get a lot of practice at that sort of thing."

"I don't think I'd want to be with a woman who did get a lot of practice, if you know what I mean."

"Well, I am single," she says, leaning forward with barely focused eyes. "I bet if you'd ask me out, I'd say yes."

Well, that's an interesting proposition. You weren't exactly looking for a long term relationship, and it's possible Miki isn't really your type, but who knows? Maybe you should ask her out?