Trina shivered, slowly pulling out at her aunt's guidance, blushing as she stared at just how much cum was leaking out of Rika's folds from her pounding of it.  She sighed, settling back to sit on her heels for a few moments, gasping for breath, the new cock still raging and erect.  She listened to Rika's plea, and gave the girl a swat on the ass.  "You can get up when you agree to make an Unbreakable Vow that you won't say ANYTHING about what you've seen here," she said, giggling softly as she rubbed softly at the girl's folds, one finger slipping inside and twirling around gently, playfully.  "After all, you look like you rather enjoyed this," she said, pulling her finger back out and suckling it clean, making sure that Rika could hear what she was doing.  "You look like you enjoyed it just as much as I did the first time."