Use her tits

"Marie, Would you please slide your blouse down? I'd like to get a look at those lovely tits."

"Of course," she replies with a smile, sliding her top from her shoulders to reveal her white bra. Unhooking it, a pair of firm D-cup tits pop out. Her top appears to have been covering up anything to gawk at; you suppose it must have been work clothes.

Stepping closer to her you cup her breasts gently, rubbing the soft, warm mounds as you glance over to Erica. She has her top just over her tits, and is lowering her thong enough to give David a peek.

"Marie, these tits are great...how about you use them to take care of my cock?" you ask bluntly.

She looks down, eyeing up the obscene bulge in your boxers. "That's a great idea! It wouldn't make sens to leave you like this," she says, some concern in her voice.

Suddenly, you hear somebody cry out behind you. "Oh my GOD!"

You wheel around to see two girls walking to their car from an apartment nearby; it seems one of them spotted you...not much of a surprise, considering how you've made no effort to hide the spectacle. After a moment's consideration, you decide it isn't worth controlling these women; it seems they're so shocked that they're already scuttling off to their car. Besides, you don't have the attention for it, as Marie suddenly pulls your boxers down and wraps her tits around your cock.

Gasping with pleasure, you look down at her. "Marie, why don't you lubricate me a bit to help me along?"

Without saying a word she grabs your member and slips it into her mouth. You feel your cock sliding against her cheeks as she licks you up and down. After a moment she pulls her lips off of your shaft and drops it back between her breasts, beginning to stroke up and down.

After she finds her rhythm, you take a moment to look over at Erica. "Mmm, my...I think someon'es getting close," she says with a giggle as David hovers over her.

Right on queue David lets out a groan, exploding all over Courtney's car. Thick ropes of cum land on the hood and windshield as David pumps out the most impressive load you've ever seen. Hearing it patter against the window Courtney looked up from her phone, smiled a little, then continued to wait patiently.

Finishing her strip show, Erica smiled over at Marie. "Your fiance must be great in bed...look at all that cum!"

Marie surveyed her fiance's mess, still pumping your cock. "David," she said disapprovingly, "is that anyway to thank that young girl? You made a mess out of their car! Mr. Doe, I apologize, he--"

"Oh, no need," you interrupt. "The poor guy couldn't contain himself! Besides, it's just her car... I actually managed to spray Courtney herself earlier."

"Oh, that's great to hear...I would have hated to upset you right after you solved our fight."

This is never gonna get old...The woman is out here half naked, using her tits to please a stranger in public, and she's worried about making a mess.

Feeling your climax approaching, you grab your member and rub it over Marie's tits before taking her hand and standing her up. Bringing her close to Courtney's car, you turn her around and bend her over against the sticky hood. Through the (slightly obscured) windshield you can see that Erica has hopped back inside, and is chatting with Courtney as they wait for you.

You push your cock between Marie's thighs and begin to pump. The feeling of her warm thighs and her wet panties pushes you past the limit. You would have liked to use Marie fully, but it's too late now; you've delayed quite enough.

"On your face," you grunt urgently.

"Of course Mr. Doe," she replies, turning around and dropping to her knees. "I'll make sure I make you feel good."

With a few strokes of her hand, you feel a rush of cum flowing out, globs of semen coating Marie's tits, face, and hair. She maintains a pleasant smile as you make a complete mess out of her, squeezing the last few drops onto her cheek.

Completely spent, you slide your cock back into your boxers as Courtney starts her car in anticipation. Just before getting in, you turn back to Marie and David. The man is helping his fiancee clean up, congratulating her on her performance.

"Oh, and Marie?"

"Yes, Mr. Doe? I hope you had a good time with me...If there's anything else?"

"I remember the two of you were meeting your parents for dinner tonight. I would suggest you stay dressed as you are, cum and all."

"Well, that would certainly save us a lot of time. Good idea!"

"Yes, and if your husband starts looking around again or gets horny, don't be shy about just pleasing him immediately. If anybody makes a fuss, just explain that I told you to relieve him whenever he needs it." You ponder for a moment, then continue. "Oh, and if you need any nearby girls to participate, that's fine too...I'm sure you're busy people."

"Thanks you Mr. Doe, that's very considerate," David says, grinning widely.

As you finally get into the car, you notice the two girls from earlier haven't actually left yet; they're standing on the edge of the parking lot, talking on the phone and looking in your direction. You realize they must be calling the authorities. You're just about to leave anyway, but perhaps you should make another detour from your plan?