Doggy

You think that she's had a good ride. You could "seed" her now. You'd really like this job, and want to give her some extra knowing with many climaxes there's a better chance of pregnancy.
So you turn her over on her hands and knees. She bawks saying she doesn't want to be fucked like a dog, but you tell her she'll love it.
You easily slide your cock inside her already juicy pussy and she moans in pleasure as the head of your penis rubs against her G spot. As you insert and withdrawal your cock pistoning in and out you feel your balls slapping against her clitoris and the sensitive underside of your cock rubbing her G spot.
You're trying to hold back, but with her moaning & groaning it's difficult enough, but her pussy is spasming and clutching as she starts to climax. First you feel her legs spreading apart, then you feel cool fluid over your cock (she squirted). Her head and shoulders are jerking up and down, if you didn't have your cock deep inside her you'd think she was having a seizure.
That's it, you're done, you can't hold off any longer. You pull her by her hips back to shove your hard cock deep inside her vagina with the opening of your piss hole kissing the opening of her cervix, with a slight moan from her and loud roar of I'M CUMMING and your penis swells up and spits the first of many ropes of your cum directly into her cervic. At the same time me she's screaming that she's cumming again too.
After you stop shooting your sperm you collaspe on top of her back and you both fall on your sides.
Her pussy is still spasming and sucking all the cum from your balls until your cock slips out of her pussy