Ask her to masturbate in front of you.

"Oops! Sorry Paula. If you're horny, why don't you sit down, take your clothes off and have a wank to take the edge off."

"What?!" she shouts startled. "I'm not doing that in front of you. I only came over here because you had asked nicely. I thought it might be important".

Damn. Lets get the wording right. "PLEASE relax Paula and take your clothes off and have a wank."

"Oh, ok then if it means that much to you", she says, undoing the belt on her raincoat. "Mind if I sit on the sofa?" she kicks off her shoes and pulls her skintight yoga pants off with her knickers in them then hauls a tight t-shirt over her head and unclips her white lacy bra. She undresses in all of 3 seconds. Naked, she looks athletic with small to medium sized tits and a ripped set of abs. Her long hair spills down her back behind her. She opens her legs to show a small well cropped that of light downy fluff above her slit, then lowers her hand to it and starts rubbing.

I get my phone out. "PLEASE Paula, could you smile and pose for some pictures?"

"Sure," she says, vigorously rubbing her clit and begins to pout towards me. "Just for you though".

"Thanks", I get a few good ones, then realize I am far too fucking horny. The point of no return has definitely been passed, the rubicon crossed etc. I drop my pants to reveal a hard on.

"Hey - what do you think you're doing?" she says with a frown, looking at my cock with a startled expression, but she is still fingering her hole and her hand looks good and wet.

"I'm sorry for interrupting your sex with your boyfriend earlier Paula, PLEASE let me make it up to you and I'll fuck you instead."

"Oh thanks", she says, beaming. "That's so thoughtful." she lies back as I approach her and mount her. She is hot and wet already and seems relieved Once I'm fully inside her. She thrusts hard back at me as I slam my cock into her over and over again.

"oh, oh, oh, oh", she repeats with her eyes shut at every thrust.

She could do better than that, I thought.

I lean closer and whispered in her ear. "You missed my birthday last week Paula. PLEASE sing happy birthday to me now."

"Oh yes." she squeals as an orgasm starts to blossom in her, "uh, Happy Birthday to, uh, you. Happy biiirthday, t...to you. Ooooooh. Happy birthday dear Rick. Happy Birthday to you. oh, oh, ohh.... " she squeals and then is lost in raptures her back arching and falling.

At this my dam bursts and I begin to fill her cunt with cock mayonnaise.

Afterwards, I collapse on top of her, both of us soaking in sweat. She hugs me tight and simply whispers, "Thank you"

"You're welcome Paula. PLEASE, before you go, could you lick my cock clean, then clean the apartment naked? Thanks".