The white, 22-y/o Phillip, his 21-y/o white friend, Danny, and the 20-y/o Cheryl had volunteered for their university’s Wildlife Observation Project to earn extra credit in biology.

And one May, Thursday morning, they were in the woods when Danny remarked, ‘The other day, Professor Steward said that in-heat lionesses often mate with 50 lions in a single night.’

‘The ultimate gangbang in the animal realm - huh?’ Cheryl inquired.

‘Yeah, though Danny and I have a bet we can turn you into a slut,’ Phillip replied.

‘That’s what I am,’ said the brown-haired vixen before Phillip reached under her shirt to grope her firm, medium-sized tits.

‘Nice boobs,’ he said as she undressed.

‘Yeah, even if we won’t be nice to you,’ Danny explained while slapping her saucy tail.

‘Please don’t,’ Cheryl answered as Phillip and Danny stripped.

However, her first boyfriend had relished her wanton promiscuity and offered her to 26 guys throughout the years.

And now, she felt in-heat as Phillip lay back on a blanket, instructed her to staddle him and directed his 9-inched cock into a her vag, followed by Danny chiseling 11-inched tool between her lips.

‘Suck my cock, you pretty, you dirty little whore!’ he snarled.

‘Am I splitting you apart?’ Phillip shouted.

‘Uh-hmmm!’ Cheryl responded while having an orgasm.

Ten minutes later, Phillip and Danny switched orifices, with Danny invading her bowels and Phillip her throat.

‘That’s it, you cock-snorting pig!’ the latter sneered.

‘You fucking swine-slut!’ Danny crowed.

‘You belong in a barnyard!’ Phillip said.

‘That’s right!’ Danny growled.

Finally, he unloaded in Cheryl’s guts and Phillip her mouth.

Next, the youngsters put their clothes on. Phillip and Danny then took her to their campus apartment where they fucked her until she could hardly stand.

But she didn’t tell Professor Steward exactly how she’d earned extra credit, though he awarded her an ‘A’ in biology.