Well, yes, finally

After ten minutes of hard fucking by Rick and four women, Donna was starting to show some trickles of nervous impulse. Charlotte's finger felt great against Rick's cock as she continued to plunge Donna's asshole, and Rick's occasional hard spanks on Donna's butt had her clenching both ass and pussy muscles in response. But trickles of nervous impulse do not add up to orgasm and Rick suspected the other women were ready for their turns. It wouldn't be positive for their friendship if Donna kept him all night. Worse, it wouldn't be good for Donna who would, relatively soon, start to shut down out of guilt for hogging Rick and the other women.

Time to escalate.

"Another finger," he whispered to Charlotte.

Charlotte gave him a curious look but he nodded and she added a second finger to Donna's tight asshole.

That made the difference.

The second finger depressed Donna's G-spot so its contact with Rick's dick was more continuous. Nervous impulses that had been trickling through her body escalated until they were firing hard and fast.

"Bite her tits," Rick instructed, "gently, of course, but use your teeth. And Tanya, hit her clit hard with your tongue."

Donna wasn't faking it any more. She was moaning, sweating, flowing juices from her pussy, and finally even lactating as Rick fucked her G-spot and cervix.

Until, finally, she screamed out his name and came.

Her nervous impulses lit up her body like a fireworks show, She bucked against his dick, her pussy trying to swallow it whole to keep it inside of her forever. Her ass muscles and pussy muscles simultaneously clenched, trying to milk out his cum... before bio-DNA, Rick would have cum a dozen times or more from the intensity.

Then, abruptly, she stopped moving, collapsing over Tanya and the two boob-biters.

"Shit," Charlotte said, "I think we killed her."